Yes 
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I got the same error when I edited the spelling mistake in the title of Ai icon for title and tag helper is positioned above the similar topic modal. It showed the error, but after reloading, the title was changed.
I get the same error when I edit the title of Disable ai title generator when pm title cannot be edited, but I don’t get it when I edit the title of Ai icon for category helper is positioned above the + menu.
Maybe the error occurs when you edit the title/tags of topics that aren’t published via ActivityPub but are tagged with a federated tag.