Game Refusing To Load In Studio Only

So I just started using studio again on a MacBook but it just refuses to load a game. I can edit everything ok but when it comes to play testing, it just doesn’t load. If I try to stop the game, studio just crashes. When it is stuck on the loading screen, it isn’t frozen or even remotely laggy. The game also works fine when playing on normal Roblox. Does anyone know what is happening?

Edit: This is only for one specific game. It has many modules and doesn’t have any builds. When I play test the game, it seems to load some things, but it just never spawns me or something.

Edit 2: Reinstalled studio, no bueno, still broken.

I would contact Roblox support about this issue.