Hi Azmo,
Do you have the "Divinity Engine Data" DLC downloaded? You are probably missing some files. Also, the game data path should be set to the "steamapps/common/Divinity Original Sin 2/Data/" folder.
Do you see any warnings or errors in the message log before the editor crashes?
I am going to try all of these steps again. It is possible in all the troubleshooting that I have done over the past 72 hours that something was mangled. I will update this thread after an uninstall/re-install.
