Is there a reason that you use some character (I’m afraid I don’t know the name of it) wherever you would otherwise use “th”? I can’t guess if it’s some kind of technical issue with federated text, something from a different language you’re incorporating, or one of those “I think we should add x symbol to the language so I’ll use it to draw attention to the effort” deals, like with the people that use the combined !? symbols whenever both are relevant at once.