This is the second time I recall getting this message. Today, I aborted a failing print using the touchscreen and pressed “Failed” in the resulting poll. Then this appeared, even though the print was in reality just over half done. I think the circumstances were similar the first time it happened as well.
As far as glitches go, this one seems harmless but I’m dying of curiosity: under what circumstances would the printer be CORRECT to throw this error? It sounds like it’s apologizing for actually having done it’s job correctly!