(this will be posted to both relevant mods)
Game fails to load if this mod is present with Extended Vanilla: Modular Logistics, with the Hyper tier of belts disabled.
Failed to load mods: loaders-modernized/prototypes/entities.lua:243: attempt to index local 'ug_entity' (a nil value)
stack traceback:
loaders-modernized/prototypes/entities.lua:243: in function 'create_entity'
loaders-modernized/data.lua:20: in main chunk
Enabling the belts seems to resolve the issue.