Enduro 3 altimeter drops issue

Hi, yes. I experienced the similar issue during the 2 hour walk/hike yesterday, but more drastic example. Drop from 117m to -65m. 3-4 times in short period of time. Watch is clean, FW 13.37. This is the first time I experience something like this on E3, but unfortunately did not have many activities.

I cannot upload picture here without uploading somewhere else.

I wouldn't say so. It was a sunny calm day in the drought river canyon. That biggest drop could be from a meter high rock jump maybe, the map position suggests so. Tomorrow I plan a bike ride and the watch will be on a handlebar so I'll see if it is just an isolated case & maybe another walk today also.

It wasn't really windy, only light breeze, and I wasn't sweaty or wet. What is strange is that same profile on descent is OK (same route up/down), considering speed was much higher (so was the air force getting into baromter holes).