Wrong summary displayed after finished activity

Does your watch show the correct date now? If not, double-check the Time is set to Auto, restart the watch, or sync the time with GPS. You can also try deleting the concerned cardio activity that continues popping up.

Thank you for response. Yes, the time is correct now, though for some reason it was very difficult to change it back despite repeated syncs and reboots (sync with GPS eventually worked). Yeah, will have to try to delete the cardio activity in question, though for some reason I can't find a way to sort cardio in the app, so will have to look through around a thousand activities from the past 4-5 years. But will try that when I have the time tonight, then cross my fingers.

6572909 said:

Yeah, will have to try to delete the cardio activity in question, though for some reason I can't find a way to sort cardio in the app, so will have to look through around a thousand activities from the past 4-5 years.

I don't think deleting the cardio activity from the Garmin Connect app will stop it from popping up on your watch, as changes or deletions to activities in Connect never sync back to your watch.

You could try to delete the activity from your watch.

1) take a note of the date and time of bad activity: after the summary pops up, select All Stats.

2a) From the watch itself:

- Hold UP and select History.

- Find the activity

2b) Using a PC or Mac:

- Fully quit Garmin Express and close the Garmin icon in the system tray / notification area

- If you have a Mac, install openmtp

- Connect watch to computer using the usb cable

- In Windows, use File Explorer to browse the watch's files and folders. In Mac, use OpenMTP

- Navigate to \GARMIN\ACTIVITIES (or \GARMIN\ACTIVITY\) on the watch. This folder contains FIT files corresponding to each activity in your watch's history

- Look for a FIT file with the date and time of the bad activity

Thank you both. I've never checked activity history on the watch, and didn't realize it could be different from the Connect log. But once I checked, I found the cardio session in question on top of the list, registered simultaneously with the last registered activity. Once I deleted it, I got the summary of an old strength session when saving an activity. But once I deleted that one as well, I got the correct summary. My working hypothesis is that these two activities were both registered within the time frame that my time sync was messed up, making the watch move the activity forward each time I saved an activity (I guess the incorrect sync time was some time in the future). All seems to be working as intended now. Thanks a lot! 

No problem! Glad it works now.

That's a really interesting bug. It does sound like both of those "bad" activities had timestamps from the future, and it seems that when you finish an activity, the watch decides to display the summary of the activity on your watch with the absolute latest timestamp, under the assumption that this will always be the activity that you just completed.

I guess it makes sense, as it's slightly less work than trying to find the activity with the latest timestamp that isn't in the future, or trying to find the exact activity you just finished, and it works as long as there's no future activities on the watch.

Then again it is kinda sloppy, but not too surprising.

6572909 said:

I can't find a way to sort cardio in the app

For future reference: select More (...) > Activities > Gym and Fitness Equipment. Change All Gym & Fitness Equipment (at the top of the page) to Cardio.

Yeah, it's annoying, but the Connect app recently collapsed a bunch of activity types (Strength, Cardio, etc.) into the one Gym & Fitness Equipment category.

If you use the Connect website, you can also sort and filter by date, although the user experience isn't so great, especially on mobile. (It's almost unusable on a phone.)

Yeah, I assume it's something like that. I guess it will never cause any common problems, as it requires several unusual circumstances. I was just curiously changing the time to experiment with a game I was playing, and can't think of many other reasons you would time travel your phone and consequentially your watch. But I guess there's always a chance a single person a few years from now will google this exact problem and find the solution in this thread.