With both this mod and C2ME installed, the world only loads up to 97 percent then freezes. If joining a server, it loads but the player falls indefinitely until they time out and the server crashes.

I am also having this issue, but I fall indefinitely on singleplayer worlds too.

Yes this is an incompatibility that I have no idea how to fix yet.

Information from C2ME developer:

chisels and bits is calling getChunk on a currently loading chunk, which is guaranteed to deadlock. This should be fixed on their side.

You can find reproduction steps and crash-report in that issue if it helps.

Information from C2ME developer:

chisels and bits is calling getChunk on a currently loading chunk, which is guaranteed to deadlock. This should be fixed on their side.

You can find reproduction steps and crash-report in that issue if it helps.

I replied in the C2ME ticket:
TLDR: That is a poor C2ME port from Fabric to Neo, because it breaks neo features and patches. I don't do anything special here, and use a Neo patch which has existed for years to access data on the chunk that is being loaded by the game. Yes without this patch it deadlocks, but I am not doing anything special or breaking here. AuContraire, Their implementation and minxins actually break Neo chunk Capabilities in a major way. As I can't fix this, and they are breaking NeoForge features, they need to fix this.