Known issues/bugs (admin please make sticky)

Not sure why there isn't a thread already devoted to this, but considering people ask the same questions over and over I thought perhaps we should put together a list of known/acknowledged bugs and issues for people to check.
I don't want this to become a complaint thread - there's plenty of those already, and I just want us to focus on issues that have been raised and someone at Garmin (the Beta team, the support team etc.) have confirmed are issues they are working on.
This is by no means an exhaustive list - but I want to focus on the issues that a newbie may come across after buying the watch (or that may give them pause for thought before even buying the watch) and to help give Garmin a real "hit-list" of the issues causing their customers pain.

If you have an issue/bug that you want me to add to the list then post below (or DM me if you'd prefer) with the following
  • Issue/Bug encountered
  • Description of what it is/what it affects
  • How to recreate the bug/issue
  • Response from Garmin (if any)
  • Ways to mitigate/fix/avoid the issue (if possible)
  • Time-frame indicated from Garmin for it to be fixed (if any)


Software/Firmware Issues

Settings from Connect over-write Settings on Watch (The Alarm clock bug)
Description: Alarms keep disappearing from the watch
How to recreate: Create an alarm on the watch and then sync with your phone. The alarms will be over-written
Garmin Response: Garmin have confirmed that settings changed on the watch directly will be over-written by settings set in Connect, even if the Connect settings are blank. The most obvious way this manifests is by wiping out or changing your alarms. It also manifests itself by making alarm labels (if set) align with the wrong alarms
Potential Solutions: The only way to avoid this for now is to only change settings in Connect. If you wish to create silent alarms then use the Connect website (Menu-Device-[your watch]) as unlike the app the website allows you to change vibration and tone
Likely solution/fix time-frame: The Beta team have said this is an issue for the Connect team to fix so ETA is unknown

Total displayed ascent and descent wrong (Submitted by TOSONNY)
Description: The watch calculates and displays the wrong ascent/descent despite recording the correct altitude/elevation
How to recreate: You can see this bug by comparing the data with other watches or upload your gpx-track to Garmin Basecamp and compare. Descent is always lower
Garmin Response: The beta team are aware of the issue and are looking into it
Potential Solutions: There is a work-around that has been found that fixes the data issue in most cases. After importing the FIT file into BaseCamp and viewing the properties, deleting any one of the data points clears up the problem. Then the data can be transferred back to Connect if you wish. Some people like to delete the first data point, but we have seen cases where deleting any one random point has the same effect. (Thanks PC3Chris for this work-around)
Likely solution/fix time-frame: The time-frame to fix this is unknown

Altimeter and Barometer Issues (Submitted by RICKJ2903)
Description: The watch has trouble determining correct elevation if not manually calibrated for the area via GPS first. If air pressure changes the watch almost always assumes it's an elevation change (I thought this was meant to be related to movement as well as air pressure changes?) instead of a barometric change. The barometer almost never changes position from flat
How to recreate: Set barometer setting to "auto"
Response from Garmin (if any): RICKJ2903 had their first watch changed as faulty but second watch still displays the same faults
Potential Solutions: Not aware of any other than don't use the altimeter
Likely solution/fix time-frame: The time-frame to fix this is unknown, and there are no suggestions on ways to mitigate this problem

Sleep Tracking is inaccurate
Description: Connect consistently reports Bed Time and/or Wakup Time wrongly
How to recreate: Go to sleep? THe issue arises because the watch does not log sleep on it's own. The Connect system does this based on your movement data and your Do Not Disturb settings
Because it is based on movement and doesn't take into account other information such as heart-rate (or alarm settings) it will often determine you're still asleep when you aren't, or it can show you're awake when you're not
Garmin Response: I'm not aware of any official response from Garmin on this one. I have never raised it directly as an issue but I used to have the same problem with my Garmin Fenix 3 as well
Potential Solutions: The only sure fire solution at this stage is to manually change your sleep times if it is wrong. It does also help to have the Do Not Disturb settings set to your "typical" sleep times
Likely solution/fix time-frame: This is a Connect issue, and as long as Garmin have multiple activity trackers with different tracking capbility it's unlikely to be resolved

Sensors/Communication Issues

GPS Accuracy Issues
Description: Somewhat subjective, but I don't see many people complaining about GPS accuracy in either the 935 forum or the 5X forum so there is most likely a real issue with the GPS on the Fenix 5 and 5S
How to recreate: Go for a run and compare tracks to previous runs over the same course with other devices
Garmin Response: The "official" response based on what people have posted here is that Garmin have told people to wait for a firmware update to address the issue
Likely solution/fix time-frame: This means that Garmin are aware there's an issue and are working on a solution but the most recent Beta firmware releases have not included new GPS software

Instant Pace Accuracy
Description: Also somewhat subjective, but again I don't see many people complaining about GPS accuracy in either the 935 forum or the 5X forum
It is also possible that people had unrealistic expectations of how accurate instant pace from GPS could be, but since it's an advertised feature people can rightly have high expectations
Garmin Response: The "official" response based on what people have posted here is that Garmin have told people to wait for a firmware update to address the issue
Potential Solutions: The general agreement seems to be that if instant pace is really important to you then GPS will never be good enough and you should use a footpod. The consensus is the Stryd is the best option by far (unless you run into connectivity issues with it - see below)
Likely solution/fix time-frame: This means that Garmin are aware there's an issue and are working on a solution but the most recent Beta firmware releases don't appear to have touched this issue

Bluetooth and Ant+ Connectivity/Constant drop-outs
Description: The Bluetooth/Ant+ range is poor
This affects connectivity to your mobile phone/the connect app and also to Bluetooth/Ant+ sensors such as chest HRM straps, footpods and power meters
This can result in data dropouts in your activities, which then affects calculations based on this data (e.g. V02Max)
It'll also result in issues with syncing between your watch and your phone/connect app, including but not limited to causing problems with Livetrack
How to recreate: Connect sensors and then see if they drop out during activities (gaps in your recorded data when viewed in Connect)
Garmin Response: Garmin have confirmed they are working on these issues, but that they're having trouble recreating them consistently
Potential Solutions: If you are having any of these issues then first install the latest beta. If this doesn't solve your problem (spoiler alert: it probably won't) then email the beta team ([EMAIL="[email protected]"][email protected][/EMAIL] and give them as much detail as possible (Watch model, phone model, model of sensors affected, what you were doing, height (this matters)
The more data we provide them the more chances they have to replicate the problem and try to root cause/solve it. They still seem pretty confident it's an issue that can be fixed in software
I see less dropouts when using Ant+ with dual Bluetooth/Ant+ devices but your mileage may vary.
I also see people suggest that using sensors on the same side as your watch also helps (so footpod on your left foot if the watch if on your left arm etc.)
Lastly, OnlyTwo has suggested trying a hard reset and then repairing your devices. This appeared to work for them. I have also tried this and have had mixed results, but I may not have done the process correctly. I will trial a little bit more and then post the steps if it does appear to reduce the drop-outs
Likely solution/fix time-frame: There is no time-frame - but it's likely this is the quite high on their list of things to fix if it can be fixed
  • Could you add the inaccuracy of the floors climbed to the list and Altitude/Barometer issues too please?
    • Issue/Bug encountered: total ascent and descent wrong
    • Description of what it is/what it affects: watch and therefore als Garmin Connect shows wrong ascent/descent despite the recorded altitude-profile is correct. So the watch seems to calculate it wrong.
    • How to recreate the bug/issue: compare with other watches (Polar, Garmin), upload your gpx-track recorded by the watch to basecamp and compare. Descent is always fewer (more than the difference of starting and ending altitude caused by changed air pressure).
    • Response from Garmin (if any): beta-team/Chris has started an excel table with my dates (which will be continued) and got also the original fit-files from the watch. He has already realized that there is something wrong and I think he is/they are working on it.
    • Ways to mitigate/fix/avoid the issue (if possible): none
    • Time-frame to be fixed (if any): not known
    • Issue/Bug encountered: total ascent and descent wrong
    • Description of what it is/what it affects: watch and therefore als Garmin Connect shows wrong ascent/descent despite the recorded altitude-profile is correct. So the watch seems to calculate it wrong.
    • How to recreate the bug/issue: compare with other watches (Polar, Garmin), upload your gpx-track recorded by the watch to basecamp and compare. Descent is always fewer (more than the difference of starting and ending altitude caused by changed air pressure).
    • Response from Garmin (if any): beta-team/Chris has started an excel table with my dates (which will be continued) and got also the original fit-files from the watch. He has already realized that there is something wrong and I think he is/they are working on it.
    • Ways to mitigate/fix/avoid the issue (if possible): none
    • Time-frame to be fixed (if any): not known


    Thanks for submitting in the requested format! I have added your issue to the list. I haven't come across this problem myself - my elevation ascent/descent values "look" fine but I've seen your thread on the issue and as you say the beta team have acknowledged a problem so it deserves to be on here.
  • Could you add the inaccuracy of the floors climbed to the list and Altitude/Barometer issues too please?


    RICKJ2903 could you please provide more detail? Preferably in the format I requested? I haven't come across these issues myself so I can't create a section for them that provides any useful information.
  • colonia Latta

    I will update a soon as possible ...because it seems that the problem maybe doesn´t exist anymore. The latest track was pretty ok. I´m still on the way to check every bike-ride. Maybe a third party app is the problem.
  • RICKJ2903 could you please provide more detail? Preferably in the format I requested? I haven't come across these issues myself so I can't create a section for them that provides any useful information.


    Carl apologies:

    Issue/Bug encountered:Floors climbed not being counted accurately,
    Description of what it is/what it affects: the watch only counts a maximum of 60% of the actual floors climbed and most days is less accurate than that
    How to recreate the bug/issue: climb stairs/floors in the normal way and the watch does not count accurately
    Response from Garmin (if any): First watch changed as faulty, however the second unit has displayed the same characteristics, other users have commented with the same issues
    Ways to mitigate/fix/avoid the issue (if possible) Unaware of any fix at this time
    Time-frame to be fixed (if any) asap
  • Altimeter/Barometer

    Issue/Bug encountered: Altimeter/elevation unless calibrated manually is never accurate
    Description of what it is/what it affects: Altimeter and barometer seem to work inaccurately, if the air pressure changes the watch almost always assumes its an elevation change not weather related. The barometer trend arrow also almost never changes position from flat
    How to recreate the bug/issue; Set barometer setting to "auto"
    Response from Garmin (if any): First watch changed as faulty but second watch displays the same faults
    Ways to mitigate/fix/avoid the issue (if possible) not aware of any other than don't use the altimeter
    Time-frame to be fixed (if any) asap
  • Alarm label bug

    • Issue/Bug encountered - Alarm labels incorrect
    • Description of what it is/what it affects - Alarm labels assigned on the watch are associated with the order of alarms on Connect, not the watch
    • How to recreate the bug/issue - Create alarms on Connect, transfer to the watch, if the order is different to the order on Connect (mine always is) the incorrect labels will show when the alarm is active.
    • Response from Garmin (if any) - beta team requested more info, which I gave
    • Ways to mitigate/fix/avoid the issue (if possible) - edit the alarms (time/days) in connect to match the labels given on the watch
    • Time-frame to be fixed (if any) - none
  • Work-around

    • Issue/Bug encountered: total ascent and descent wrong
    • Description of what it is/what it affects: watch and therefore als Garmin Connect shows wrong ascent/descent despite the recorded altitude-profile is correct. So the watch seems to calculate it wrong.
    • How to recreate the bug/issue: compare with other watches (Polar, Garmin), upload your gpx-track recorded by the watch to basecamp and compare. Descent is always fewer (more than the difference of starting and ending altitude caused by changed air pressure).
    • Response from Garmin (if any): beta-team/Chris has started an excel table with my dates (which will be continued) and got also the original fit-files from the watch. He has already realized that there is something wrong and I think he is/they are working on it.
    • Ways to mitigate/fix/avoid the issue (if possible): none
    • Time-frame to be fixed (if any): not known


    There is a work-around that has been found that fixes the data issue in most cases. After importing the FIT file into BaseCamp and viewing the properties, deleting any one of the data points clears up the problem. Then the data can be transferred back to Connect if you wish. Some people like to delete the first data point, but we have seen cases where deleting any one random point has the same effect.
  • All Day HR quits after charging

    I first noticed this anolomy when I had a Forerunner 935, and it updated to the 4.1 firmware. Initially, when I received the Forerunner, I charged it, and all was well. On the first recharg of the watch after the initial charge, the "all day heart rate" widget, and graph in Garmin Connect stopped recording the heart rate. Activities using the strap worked normally. This required a reboot (shut down/restart) to get the graph, and the heart rate working again. I returned that watch, and purchased a Fenix 5 Sapphire.

    On the initial charge, and after, the all day heart rate worked fine, until yesterday, when again, I did the first full recharge since purchasing the watch, and the all day heart rate quit again, only to restart after I rebooted the watch again. Here is the Garmin connect page that the FR935 stopped,

    https://connect.garmin.com/modern/daily-summary/OEAGLEO/2017-05-29/timeline

    and it will pick up the next day when I noticed that the HR had frozen. During this time, the graph on the widget did retain the data that was previous, so it actually appeared to be working. Upon reboot, the graph was cleared, and we started again. Here is the graph using the Fenix 5, and it's doing the same thing:

    https://connect.garmin.com/modern/daily-summary/OEAGLEO/2017-06-12/timeline

    And, once again, it required a reboot the next day when I noticed what was going on. Since this has happened to two separate watches, on two separate occasions, the only common thing is the 4.1 firmware, I belive it is a glitch either in the heart rate monitor believing it is shut off when disconnected from the wrist for a longer period than a few minutes, or something else. It should be noted that other times when the watch is off my wrist, (hot tubs, sauna, shower, etc) the HR monitor doesn't shut off.