[Fabric 1.21.1] Issue with flickering Fireflies when ModernFix is installed

[FoxySophie]

Fabric 0.18.1 - 1.21.1
ModernFix 5.25.1
SubtleEffects 1.13.1
Latest.log: https://mclo.gs/Ufocw30

When ModernFix is installed it causes flickering textures at the bottom of the fireflies added by SubtleEffects. I'm not sure if this is something I should report here or with ModernFix but I figured I start here.

2025-11-21_11-19-15.mp4

[FoxySophie]

Specifically it seems to be the setting mixin.perf.faster_texture_stitching that seems to be causing this. If I disable this setting and restart my game the gliches seem to be gone. So I guess this can be marked as a low priority issue then.

[MincraftEinstein]

I can confirm that this is caused by the mixin.perf.faster_texture_stitching config in Modern Fix, however, I don't think there is anything I can do to fix it, since fireflies aren't rendered any differently from any vanilla particles. You should make an issue about this on Modern Fix, they may have a solution for this.

[FoxySophie]

Okay, I figured as much, thanks for the confirmation! I'll open an issue with ModernFix then and reference this issue.