Bug Description

Black screen on game launch with Simply Optimized Modpack 1.21.5-02. Removing modernfix makes the game open normally.

Reproduction Steps

Download Simply Optimized Modpack 1.21.5-02. Launch game.

Log File

latest.log

ModernFix hasn't been ported to 1.21.5 yet, and earlier versions are unlikely to work properly on 1.21.5 (they're not marked as compatible with 1.21.5 for that reason).

Sorry about that. I should have checked before I opened the issue.

Going into the config file manually and disabling dynamic resources (mixin.perf.dynamic_resources=false) did the trick for me when using the version bundled with Simply Optimized, even if it's not officially endorsed.

(Edit: To be clear, Simply Optimized's default configuration for this mod does not seem to enable that, I did so when experimenting with settings and found that it broke things. Which of course is to be expected with unsupported versions!)