It sounds like a shader loading/compilation issue. You mentioned the logs, does the second line in the log say the game is using Vulkan/DX12 or OpenGL? And are you on windows or linux? Also what gpu are you running the game on
And it also happens in the dx12 build? There was a gpu driver from AMD a few months ago that broke all Godot games using vulkan, but I'm pretty sure they fixed it for all their cards. The only other thing I can thing of is to delete the shader_cache and vulkan folders next to the logs foder.
