Forge: 14.23.5.2810

MUP:
https://paste.dimdev.org/uxixawawut.mccrash (One of the crash)

Disabled: mc5694, mc54026, mc73051, hud, newlight, rsturbo to able to launch.

VanillaFix:
https://paste.dimdev.org/fehupucida.mccrash

Disabled: bugFixes, profiler to able to launch.

Can u share the mod versions for both?

https://gist.github.com/zomabies/d8cda4453cc7784eed19a958e625298d

Thanks for your report! I'm sorry but u really can't do much about the conflicts, if there are similar features in mods, the need to enable only one of them, but I am working on a Feature disabling system for my mod too which will be in an upcoming release, by which u will be able to disable stuff similar to MUP.

I am leaving the issue open for now even after adding the feature disabling feature, cuz i am gonna try implementing a conflict detection and auto-disable system, so as to prevent crashes.