DimensionalThreading VS sodium-fabric

The Dimensional Threading mod offers this on 1.16+ fabric servers

You don't need to redesign the server. You can just use these mods.

Dimthreads may cause some issues, though seemingly none that are similar to yours https://github.com/WearBlackAllDay/DimensionalThreading/issues. Also make sure you configured it to use more than 3 threads since you have additional dimension mods (Aether);

Starlight performs substantially better than phosphor and greatly speeds up terrain generation. Krypton for networking performance. C2ME or tic-tacs (both aim to do the same thing and are not mutually compatible) greatly improve world loading and terrain generation but are experimental and, in my experience, not compatible with a lot of other mods. Dimensional Threading puts each dimension on a separate thread, but also tends to not be very compatible with other mods. FerriteCore aims to reduce ram usage. This page has a whole list of mods.

(Experimental) Dimensional Threading ( WearBlackAllDay/DimensionalThreading )

SOLVED: Thanks for the suggestion! I just figured out the problem. I had the experimental mod called Dimensional Threading installed on the server https://github.com/WearBlackAllDay/DimensionalThreading.

[22:52:47] [Render thread/WARN]: If the game crashes immediately after this point, please make a bug report: https://github.com/CaffeineMC/sodium-fabric/issues

I googled "fabric crashes with falling block" and found this GitHub Issue in the Sodium Repo. Solution: install Indium, because continuity relies on it to bridge over to sodium.

It`s Indium. https://github.com/CaffeineMC/sodium-fabric/issues/1324

GitHub link

if https://github.com/CaffeineMC/sodium-fabric/issues/1006 is what you are talking about, it is an upstream issue for any forge port of the sodium mod

Wow, a reasonable criticism! According to this issue, transparency sorting hasn’t been implemented, and so the behavior is inconsistent. Surprised to see a pull request linked that had fixed it, but was never merged and is now incompatible. Definitely affects users who have farms and stained glass builds though!

The problem with the multithreaded version of Optifine is that OpenGL doesn't officially support multithreading (at least not with older versions of OpenGL; Sodium (for modern versions) uses a "multidraw" function to get up to 10x the FPS but also uses OpenGL 4+, and even then it has issues on many drivers. Note that using such modern features would require a "core profile", precluding the use of all legacy fixed-function methods so the entire renderer would have to be rewritten).