Raycasting extension: wall collision stopped working

Hi everyone!

I’m making a MakeCode Arcade game using the raycasting / 3D render extension, but the wall collision stopped working.

The player/camera can move through the walls, even though the tiles are marked as walls in the tilemap. The collision was working before, but after adding/changing parts of the game with the raycasting extension, it no longer blocks the player.

Project link: https://makecode.com/_JxxcbtFKsKDF

Could someone please take a look and help me understand what is breaking the wall collision?

Thank you!