I found out my Preview Mesh said “The mesh has changed and needs updating”:
I also followed @OverRated_AU screenshot and after setting that up, I’m getting this:
But I notice that’s just for one of the debug instances, there are 3 debug instances listed. So now I need to figure out what the difference is between the various instances - not all of them pass the IsValid check.
Update: The other instance was a blueprint I had dropped into the world but wasn’t the one that spawned on PlayerStart - the active mesh! Thus, looking at Debug for the wrong object shows obviously that the IsValid? is false, because that isn’t attached to a player at that moment.
Thanks guys for all your help!