Using ModernFix (any version for 1.18.2) alongside with the I Like Wood mod (latest 1.18.2 version) causes the barrels from this mod to render as a missing texture block:

So any ILW barrel placed on the ground turns into an emo block. I haven't noticed any other blocks behaving this way.
Disabling mixin.perf.modern_resourcepacks in the modernfix-mixins.properties file fixes the issue but makes the game launch slower.

Open barrels, however, always render as intended:

I tried to reproduce this bug in 1.19.2 but everything works fine (I can't update my modpack to this version tho).
I guess I really... Need the barrels...

Thanks! This was reported and fixed on 1.16 a while ago and somehow the fix did not end up getting applied to 1.18. It's now fixed in 2.2.2.