Seems like UE 5.3 just has a lot of buggy features that weren’t fleshed out and causes the Engine to break itself but I managed to fix the issue, but I had to revert to an old save a few times… My conclusion to the problem is there was a modifier I was using for my landscape to remove the ground and my only guess is the modifier was causing unreal to crash nonstop. Every time I reverted to an old save and used the landscape modifier It caused my Engine to crash on startup. Once I stopped using anything relating to modifying the landscape the problem never happened again. So if you’re doing anything related to modifying the landscape I’d make sure and see if that’s causing any issues relating to your engine crashing.