I am seeing an issue where my 935 reads a heart rate 20-30 bpm higher than it should for the first 2-3 min of an activity. I can confirm this by a finger HR measurement. After this.the reading drops down to the correct reading and stays good for the remainder of the workout.
This issue happened occasionally in the past but is now happening most of the time with version 15.10.
Has anyone else seen this issue?