I have a friend who has a character on Excalibur and she wanted to transfer to Ultros. She told me Mogstation was preventing her because of this:

"This character or one of its retainers is in possession of a ceremony invitation."

She told me she got invited to a wedding that never happened so she threw the invitation away, and she did not own any retainers and her inventories (including Saddlebag) were not containing it. She had contacted SE but no help was given.

Would appreciate if I could find a solution here.