Model offset editor shows "Model has no offset assigned" even for models that do have an offset assigned

[Lapidearum]

As the title says, the notice beneath the Heels Offset input that a model lacks existing offset data is present regardless of whether that is in fact the case. It's purely an interface issue, and an easy enough one to simply ignore, as the actual data is loaded just fine and saves just fine, but I figured I should report it all the same,

Edit: Upon further examination, it appears to not recognize the TexTools-safe attribute in particular. Values set without that are properly listed.