At the moment, using SubScenes affects all worlds. We've been using a series custom worlds with different lifetimes. Anything we do with SubScenes seems to affect all worlds, which was somewhat surprising to me. Particularly, even without 'auto load', destroying a SubScene MonoBehaviour will unload whichever scene it references from all worlds.
How is the sub-scene conversion flow expected to work with multiple worlds? (Particularly multiple worlds with very different purposes.)