https://mclo.gs/g5CGsfP

crash happens only when Cursery and Amethyst Core or Amethyst Imbuement installed

There is no crash logged in the provided link, so I have nothing to diagnose.

That must be something with the logs. I checked all logs I got from this crash and not a single one contains the problem. I guess you'll need to replicate this issue yourself by installing Cursery and Amethyst Imbuement together. Sorry.

I still can't replicate it in my test pack. I launched into the game just fine with the latest versions of AI and Cursery

If you are using the Curseforge Launcher you should be able to export it as a modpack. I'm not familiar with how to do it with other launchers.

I guess I need to somehow make logs work properly. I'll try some things, but that will take a few days. Me and my family are moving, no time for Minecraft.

Wait, can I somehow export modpack where I'm experiencing an issue? So that if I will not be able to fix logs, you will have my environment

Yes, I'm using CurseForge launcher. I will try my best to find time to send it to you tomorrow.

2023-04-30-4.log
Here is crash log. But latest logs are still broken for some reason. Sorry for the late response

Closing this because it's stale, and none of the logs actually are showing an issue, and I've never been able to replicate.