When I try to start a TMG solve, I get an error saying that I have thermal coupling missing geometry. However, the message does NOT say which thermal coupling is giving me trouble. Instead it just says "The following entities reference empty geometry" with Thermal Coupling: (weird symbol). I attached a picture of the error message.
In the past it would list the name of the thermal coupling, but now it's the symbols shown in the picture. Without knowing which TC is being problematic, I'm forced to add/remove each one from study to guess and check. How do I fix this?