Dump fails due to "net.fabricmc.fabric.api.blockview.v2.FabricBlockView" not found, but this is an entirely forge modpack, no sinytra connector at all.

https://mclo.gs/BssiyPE

Running it with only the server mods + probejs yields a success when on a singleplayer world. So it's definitely a client-side mod... No idea which

Looks like the class scanning is touching something that shouldn't be loaded... It would be quite a problem to fix considering the current development focus is very on 1.21.1.

Experiecing the same issue. Is there any work around?

I was having this same issue until I removed AdvancementJS and all related scripts. Not sure why but it wouldn't dump anything other than entity_type and item/block types otherwise. Now it dumps classes and stuff too