I haven't had that problem, so it might be on your end, or it might be a problem with the game that only shows up on some devices (so still a bug that the creator would have to fix). I'm using Brave, which is very similar to Chrome, but it uses a lot less memory so maybe that has something to do with it? Like, it's possible that the code listens for the event in a way that might miss it if a frame is skipped due to low memory. IMO, this seems like something the creator should look into, but it's also possible that it's just your computer. Is anyone else having this problem?