Describing my case: I was trying to create an actor with RVT elements through C++. When creating a Class in C++, I noticed that there were pre-made class formats native to the engine, which would not require creation from scratch. I decided to use the templates that unreal offers. After creating the class in C++ I was unable to open the project anymore. I figured this was because I had actually created a broken C++ component, as I’m a C++ noob. But after discovering that there were already native classes that did what I wanted, I tried again, but with BP
I decided to create another project, this time without generating a new C++ class. I went straight to Blueprint, selected BPActor’s child class: Runtime Virtual texture Volume and the crash occurred again. However, I can still open unreal project in this case, but the BP RVT is deleted.