The controls felt tight, nice work!
I got to level 7 without the bar changing at all from full blue.
The music and sounds were very good!
I recommend a hint about wall jumping for the first level.
That's weird, I've never seen the bar just get stuck. I'm guessing it may have been a compatibility issue with your PC or browser. I'm not sure what else it could be. Maybe it was an issue with my code, but the code for moving the bar is so simple that I can't imagine that I would never have seen this glitch.
Funnily enough, I was actually expecting the exact opposite of that. I remember seeing some older versions of godot 4 had issues with web exports on Mac, so I assumed some of the issues were still there and you were playing on Mac. It's weird that it worked on Mac but not windows. Either way, thanks for helping me figure out what the problem was!