Ok, thanks. That’s really unfortunate, not really suited for prototyping then. Yesterday for example I counted roughly 120 crashes/corruptions/etc. I can write code quite fast, but then my idea of prototyping is to quickly iterate over constant changes - which is impossible then using C++ with UE (due to this workflow of re-opening the editor all the time or dealing with corruption).
In conclusion, the approach then is to first make a base framework with C++, compile it and then make everything with Blueprints, inheriting from the base framework, without touching the base framework again while doing quick iterations.