Every settings in Preview Scene Settings Panel of static mesh editor do NOT support Undo. Ctrl+Z doesn’t have any effect, But it will still show the prompt!
Hey,
I looked into this and it has been logged before. However the Devs have determined this is working as intended. You can see the Jira UE-34094 for this and check the ‘Developer Notes’ at the top. It’s repro steps follow what you are reporting.
But it will still show the prompt. It looks weird.