Clicking "compile" in 4.12 on BP compiled in 4.11 crashes UE4

Hello
Again wanted to thank Epic Games for awesome job at ruining projects by making new UE4 versions
Clicking “compile” in 4.12 on BP successfully compiled in 4.11 crashes UE4 regardless of making any changes in it or not

How can I debug it or where even to start to make it editable again?

if you don’t like UE4, you can go back on source or unity … Compile error is already known, you just had to search a bit and is internally resolved. just wait for the next hotfix

Hello,

Please refer to this post for updates regarding this crash:

Have a great day