Flights climbed - apple watch counting too many

My apple watch 4 counts too many fligts.

It used to be steady normal count, but one day it changed and now I have steady too high count.

Watch can easily count 100 lights even on total flat day. Such situation leads to my doubts if I can trust also other measurements of my watch.

I know that some other users have this problem. Apple service is kind of trying to solve it for me; for already 3 months; watch still have warranty.

I want to ask

• if anybody had such problem and it was fixed? I mean should I have any hopes there..
• does the warranty have any value in this situation? I

I think they should just replace my watch so they can really investigate the issue at their laboratories, find solution also for other clients..

Thanks