I tried to cook the project in unreal editor and got this error.
LogLinker: Error: Package D:/ROV_Final2021/MyProject_State 4.26 - 2/Content/ModSciInteriors/Materials/MI_Floor_A.uasset was saved with a newer custom version than the current. Tag 12F88B9F88754AFCA67CD90C383ABD29 Name 'Dev-Rendering' PackageVersion 45 MaxExpected 44
The project is made with 4.26 and it run completely fine in normal play mode so I'm not sure which of its is a newer version. Any idea on how to fix this?
It seems MI_Floor_A.uasset is part of a downloaded asset pack. If so, make sure you downloaded the correct 4.26 version of the asset pack. The one you currently have might have been made with Unreal 4.27.