[1.20.1] Issue when creating "fake" level off thread about flywheel

[Jozufozu]

Huh interesting issue. Seems that create's assumption that loading a new world should invalidate renderers isn't sound. Or at least create is being overzealous and invalidating resources for every world rather that just the one being loaded/unloaded.

This is a bug with create, though I'll leave this issue open for now.

Not sure what you could do for a workaround until create updates unfortunately. Perhaps a mixin into com.simibubi.create.foundation.events.ClientEvents.onLoadWorld?

Thanks for the report!

[CreativeMD]

Thanks for your quick and nice response. I reported the issue to Create, we shall see what they say. I could also execute this event on the main thread, which is not the best performance wise to at least a temporary fix. I will close this issue here, because as you pointed out it is an issue of create. Again thanks for your help!

[Kneelawk]

I've found that creating levels off thread just leads to issues. Minecraft levels synchronize to the thread they were created on, or at least they did in 1.16, and that breaks a lot of stuff if they're created off the main thread.