You can no longer use spaces inside widgets in UMG. Previously named widgets still have spaces in them, but renaming or making a new one removes them.
Bump? Any info on this? This whole “let’s f**k with engine things without mentioning anything” that’s been happening with UE5 is very annoying and makes it feel like a regression in a lot of ways over UE4. Its also inconsistent with the way the engine works everywhere else (with no variable name limitations) so if its a bug then it should be addressed not just brushed off.