stand up paddle

What issue do you have? I only have issue that I would call standard Garmin's issues: reported max speed is usually unrealistically hight, average moving speed is considerably higher than average speed despite the fact that I don't make any pauses, actual speed / pace is variable if you go constant pace.

Since July, in some update on fenix 6 pro there are speed gaps, i.e. speed 0 every 2 or 3 seconds, like speed reading is lost. like blank space.

the training was at constant pace, and also so I have several records with that error vs correct records from previous sessions....

https://connect.garmin.com/modern/activity/9710226685

LOL, after one month off the paddleboarding I forgot about issue that I reported myself..

Yes, I have this issue. It is extremely annoying. I had 3 SUP sessions this week and all of them are affected with this bug. I put it on my ignore list of many issues I have with Fenix 6. Not sure how it affects other SUP statistics but I consider the Garmin's SUP sessions as unreliable. Still recording the SUP sessions with Fenix, but mainly for heartrate that I record with HTM Pro. 

I am surprised that there are not many more complaints about this. Bad news are that it is also present on F7.. The way the Garmin does do (not do..) issue tracking and solves bugs does not suggest the issue is going to be removed any soon (if it even be removed). I hope that more paddleboarders will visits this forum and share their experience with Garmin.

https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-6-series/303842/issues-with-speed---fenix-incorrectly-detects-speed-as-zero-when-the-actual-speed-is-relatively-high-sup-session