My firmware was updated recently and when I ran today the green triangle kept appearing every few minutes.
every time the app froze for about half a minute and then reappeared and asked me if I want to start again.
needless to say that this is extremely annoying...
when i finished my run it was not saved, no HR data was record and no steps count for the entire run.
also, this problem occurs When using the watch menu ( settings etc’)
using 645 music
firmware: 5.90 ( 3be0391)