Hello, I encountered this issue while running my server after adding Polymorph to the mixture

Polymorph (polymorph) encountered an error during the common_setup event phase
§7java.lang.NoClassDefFoundError: voronoiaoc/byg/client/gui/BYGWorkbenchContainer

Update to Polymorph 0.16.

It appears at some point between oh the Biomes You'll Go v1.0.8 and v1.1, the package voronoiaoc was renamed to corgiaoc. The releases between those two versions seem to be in regards to addressing a change in the way forge handles registries, as if I try to load v1.0.8, I get errors in regards to BYG trying to add to the registries after the registry was locked.

v1.0.8 was released late october