Stuck at 86 whenever adding a C++ class

Whenever I am adding a C++ class in the content browser it just went SO SLOW, always stuck at 86% for quite a long time.
How can it solve it?

Class should be already generated, close editor and open sln file in your project and try to build, look on output tab and this should uncover what is taking time, potentially showing error or something. When you build code with editor open it runs on hot reload which is not 100% perfect in all cases and may bug out

Thx a LOT that really works!