Heart rate zones in Activity vs User Profile

Am I really the only one with this issue? 

I have this bug too. I noticed it during cross-country skiing and Ski Alpinism so far.

Yes I have it too! Z4 and Z5 are correct, but Z1,2,3 are a few heartbeats of. Garmin what is happening here? How reliable are my results then?

I solved the problem (at least for me). I had the heart rate zones (not for sports) set to.

Z1 - 62%-72%

Z2 - 72%-82%

Z3 - 82%-87%

Z4 - 87%-92%

Z5 - 92%-100%

and during sports (running, cycling and swimming)

Z1 - 50%- 60%

Z2 - 60%-70%

Z3 - 70%-80%

Z4 - 80%-90%

Z5 - 90%-100%

I set everything as for sports and now it shows me the correct zones for cross-country skiing and free skiing.

I've deleted other sports, so now I have only default and still doesn't show the correct zones. :/

Define which zones do not suit you. Because in the profile there are zones for sports (running, cycling and swimming) and then there are zones for everything else. The range of zones varies depending on the current resting heart rate.

Now I've checked, the Run sport reappeared again. I want to change the percentage, because 60-70 % is definitely too low for zone 2, but I can't - in the default setting it's correct 70-78 % but on the Run profile as stated before, too low.

I only use one setting. Still difference between the set zones in user prifile and the zones in the activity report

after all, this is what I wrote to you