Iris and Minecraft Version

iris-and-sodium-mc1.17-1.1.2+build9 for 1.17.1

Are you running Sodium along with Iris?

Yes

Operating System

Windows 10

What is your GPU?

Geforce RTX 2070 Super

Java Version

Java 16

Reproduction Steps

1. Launch Game
2. Create new world or select an existing world
3. Game crashes after world load and immediately says "saving"
   crash-2021-11-27_16.42.20-client.txt

Crash Report file and latest.log

No response

Additional context

No response

Does this happen when running optimize world?
Does this happen when creating a new world?
If first two are no and yes respectively, does it crash with normal sodium?
https://modrinth.com/mod/sodium

Does not matter if I load a new world or try to join an existing world, the game crashes the same way. Normal sodium works fine.

I apologize. I did not realize this instance was utilizing an old directory and somehow loaded an old unsupported shaderpack I did not even realize I had installed. I create a fresh install directory with no shaderpacks and the worlds now load and create fine.

Does the world load in vanilla?
Which shader?
Which launcher?

The world does load in vanilla. I am using the default vanilla MC launcher, and I have not even installed a shader as the game crashes prior to actually loading into the world.

No worries! Just glad we could help resolve the issue :)