- I’m using a Forerunner 255s with software version 25.04. This morning I started a Garmin Coach 10K running workout scheduled for 1h09min with a heart rate target of 122–147 bpm.
- However, the workout ended automatically after exactly 42 minutes, even though I continued running. The heart rate target meter also disappeared at that point. In the heart rate graph in Connect the target line also drops after 42 minutes.
I didn’t manually stop the workout, and everything was synced properly beforehand. I’m aware that the 25.04 update includes a fix for strength training segments in running workouts, but this issue seems unrelated.
Has anyone else experienced this? Is this a known bug?