When importing a track the web client automatically zooms to show the full track. Somehow this seems to break normal zooming with the scroll wheel. The +/- buttons and double-clicking (to zoom in) still work.
Web browser is Firefox 140.3.1esr (64-bit) on openSUSE Leap 15.6
Web Client is 0.18.1
Edit: I don’t know how or why but somehow after I switched back to a brouter tab where the zoom was broken it worked again. But I can’t reproduce this “recovery“. When I import a track in a new tab the zoom keeps being broken no matter how often I switch back and forth.