When running Patchouli with CustomTitleScreen on Twitch causes the game to crash before loading.

The game doesn't generate crash_report so here is the log file.
latest.log

Have you tried reproducing in a more minimal environment?
For example:

• Try with just Patchouli or CTS by itself, then together with no other mods
• Try in multimc (without jumploader)
• Combination of the above two

A brief scan of the log looks like a mixin failure in CTS, but the failure is in code that Patchouli doesn't touch.