First off - this is NOT an issue with TES5Edit. It's an error in my mod.
I used Check for Errors to check the .esp, and I get this:
http://pastebin.com/uK9nqwBp
Does anyone know the source of these errors? These fragment scripts once referenced global properties, but I've removed that from the script fragments (open in external editor, delete Papyrus property, compile). They now use (GetOwningQuest() as MyQuestScript).MyVar instead. I've verified the scripts show no properties with the edit property button, and have no properties or references to them in them.