Editor crash on Level load (4.8 access violation)

Hi Wa
So far i had only downloaded the engine through the launcher, but i will try to download it through GitHub to see it i can get the project to run with your work around.
The state which seem to cause this bug in our project seems to chains of inheritance.
So a blueprint->blueprint->blueprint->c++ class (-> meaning inherits from), does your project contain bigger chains like this or is it only in our project this seem to be the case?
I’m trying to see if i could find exactly what causes the state in our code.

Thanks
Jens-Emil