I tried to any% the game like 4 times and I got the glitch every time, how do I avoid it?

Can you describe the glitch you mean?

I have the exact same problem in all of my runs : basically, when you complete the Objectasks, pressing Enter to select Neil does nothing, you cannot use the arrow keys (they still make sound tho) and you can't use Escape to get out of the menu, forcing you to restart the game.

Hmmm, I never actually encountered this before, weird

This actually happened to me on the old 100% If you click too fast, it'll not register

So you'll need to wait a bit for it to register

luluboss is right, I just waited for a bit and it was fine

Then I guess we have our answer submitted by Lulu and confirmed by Durrpey, don't click too fast when you're entering Neil Mode. Good luck, everyone!