Wrong swim distance during exercise

My issue is very similar, in that I use length's instead of distance. it seems accurate up to 10 lengths, and after that it becomes rather irregular.
The alert I've set-up - vibrate every 1000 meters - is still working correctly, based on the actual lengths swam rather than the ones it displays.
When I press stop/pause is displays the correct lengths swam.

Look here - same problem:
https://forums.garmin.com/forum/on-the-trail/wrist-worn/fenix-5-5s/1391181-swim-lap-count-goes-wrong-7-8-9-10-11-22

Same problem with Fenix 5 Plus line...

Same Problem for me,during the exercise the distance is totally wrong (more or less doubled) and then it becomes right when stop the exercise.

Yeap, same issue for me since updating to v10... :( Hope they fix it soon as it's really annoying during the swim.

I swam this morning and looking at "swim distance" it does the inaccurate measurement, but I noticed that my "interval distance" was correct. The distance seems to correct itself for a little bit if you pause the activity and resume it.

Pool Swim Data has been addressed in 10.55 Beta Release.

Hello, I also have problems with the distance, same issue since the watch updated to version 10.00, I downloaded the version 10.55... Then, I say if it worked, on Friday I going to swimming. :rolleyes: :)

Hello, I updated to version 10.55 and the issue was solved. Thanks! ;):D