You have a lot going on in the blocks for that screen, including a forever loop and multiple other loops:
You’re also relying on a lot of Get Value blocks and I know there had been a bug with that block and I’m not sure if it’s resolved yet.
I would recommend adding some debugging blocks inside of those functions. Here’s a method I use: Debugging in Thunkable X (Video). That way, you can see exactly where the code stops working.