We are trying to update our apex 5.0 applications to last version of universal theme, but we are unable to do so:
- Created new theme 200 for current app.
- Switch theme 42 to theme 200 by manually matching classes.
- Unsubscribe theme (beacause we want to subscribe all aplications to a master application theme, and this master application subscribed to repository universal theme).
- Restore theme subscription
- Apex says that it cannot restore subscription as my templates doesn't have an identifiers. It seems that it erases all identifiers once you unsubscribe the theme as you can see in second image.
- Try matching by class name, it also says that my templates doesn't have identifiers (Why? I'm not selecting match by ID). Seems that match by class name is not working.
See this image, match template by template name, and error says that:

