Weird, I'll look into it. I just got the web build working, so there are probably quite a few bugs I'm not aware of.
To clarify, the fish don't move? And which UI element do you have open when this is happening? I'm trying to reproduce the issue :)
Well everything inside of pond doesn't have animation unless I click "Hide UI" button (stockers have animation of filling but doesn't show when fish exits) but it still detects when fish get caught in black hole or when I trow hook. If it's help I'm playing on MacBook Air (Os Sequoia 15.5) with M4 chip and 24G unified memory + I'm playing on OperaGx