I’ve just experienced and resolved this. On Cubase 13.0.41, Windows 11, I was getting this error every time I wanted to do a multiple export for a particular project. I ended up bouncing things individually until I hit the track that was throwing up the error.
The Instrument track that was broken seemed to me to have an acceptable name “STEM_STRINGS TAPE SAT CHUG 8THS BOWED” but deleting that name and writing something very generic like “Strings” or “Staccato 8ths” fixed the issue. There must have been a character in the text that was invisible to me but wasn’t allowed (underscores are usually fine), it definitely seems like a bug, but hopefully that’s a fix for anyone stuck.
Rewrite your problematic track’s name to something like “Hello” or “Track” and see if that works, worked for me!