UE5 Voluemtric Clouds doens't work anymore (FIXED)

I tried doing this, but the clouds still don’t show up. Was there any particular change to the material you found worked most successfully?

How often then must the question be asked: How to recompile the cloud material? I do not know how. Please can someone explain step by step briefly understandable? Thanks

This is not fixed, 5.2 and recompiling does not work.

Any fix for 5.2?