Up to 0.2.3, Rubidium was working fine. Upgraded to 0.2.5 to enjoy those Create/IE fixes but it crashes upon loading the world
crash-2022-04-12_11.22.07-client.txt

Update: 0.2.6 still crashes. New crash log attached
crash-2022-04-28_23.08.35-client.txt
.

I am getting a similar crash.
I am not completely sure why. My chunks are also not loading properly.
Here is my crash report:
https://crashy.net/yg5Crv4P8PMAxdk9QnGb?raw

I am getting the exact same crash as @archieonic. Using 0.2.6 of Rubidium.
Modpack: Ragnamod 6
Crash Log:
crash-2022-04-30_11.37.53-client.txt

Resolved. Modpack was using incompatible version of BetterEnd. Switching to the forked version fixed the crash.

@archieonic I cant seem to find the forked version. Mind sending me the link?