Yeah, the Assertion failed with UObject\Class.cpp has showed up in other scenarios across the community, usually tied to a blueprint trying to access an invalid reference.
To rule corrupted data, first step would be to perform a clear cache, via deleting folders Derived Data Cache, Intermediate, and Saved. After that, check your blueprint references, fix up your redirectors from Content Browser, and recompile everything.
If the issue persists after that process, please check the solutions implemented in the threads below: