Garmin Combo Running Power crashes with navigation (935)

FR935 ROW FW 12.10
Garmin Combo Running Power app:
https://apps.garmin.com/en-US/apps/a26e5358-7526-4582-af7e-8606884d96bc (Up-to-date as of this post)

Garmin Combo Running Power crashes when navigation is started on a 935. There's no corresponding log in the CIQ_LOG.YML

1) Add Combo Running Power to your running activity
(You don't have to have any other CIQ fields to see this).
2) Start timer
3) Observe Combo Running Power hasn't crashed
4) Select Menu > Navigation > Back to Start > TracBack
5 ) Combo Running Power crashes immediately

If you do the test with another CIQ data field, such as Dozen Run, it won't crash. This is the case whether or not Combo Running Power is also installed at the same time.

I've also noticed that the 935 became incredibly slow after a while, while running a 20k course. I don't know if it was the navigation, or the cold, or both. But scrolling was slow enough to be almost unbearable. Starting the same course indoors (but not running it!), I don't see the same problem.


  • Is this an intermittent issue? I ran through your test case, and i did not experience the crash. I didn't have an ant+ sensor available, so perhaps that is where the issue comes from. I will try again once i have a sensor.
  • Tested again with a sensor, and was unable to reproduce. Has it been reported on multiple devices? I would be happy to try again if you find any new info.
  • Stephen.ConnectIQ this is something that I have only experienced personally. It affects me because I use navigation once a week, and I liked to run with Garmin power.

    I can make it happen whenever I want. In fact, if add Combo Running Power after I start navigation, it changes to the Timer, which I believes indicates a crash. I noticed that the Running Power datafield doesn't do the same thing.

    I am using an HRM-RUN (v2 I think, with the non-removable red module).

    I tried it on two different activities (Run and Walk) with the same results. Can send more info from my device if you like.

    I also witnessed a full device crash during a subsequent test. Also no log in the YML.
  • Stephen.ConnectIQ thanks for the quick reply btw. More information:

    I switched my watchface from the graphically intensive "This Is Fine" to the stock watchface and it doesn't happen anymore. But then I switched back, and it still doesn't happen....

    I guess my problem is resolved, but it seems like something's not right here. I know that CIQ watchfaces are unloaded when you have a CIQ datafield or two in your activity, so I wonder if something went wrong there.