Version

Twilight Forest - 4.3.2508, 4.0-455

Curseforge

https://www.curseforge.com/minecraft/mc-mods/quark https://www.curseforge.com/minecraft/mc-mods/the-twilight-forest

Details

I'm not sure if you do this but I think this mod should unify hollow logs from twilight forest and quark because it just adds a bunch of duplicates.
Edit: I also just want to put that both hollow logs have the same exact model and can both be rotated the same ways

I'll check

I've took a look at this. it's impossible to merge these 2 hollow_log because they are from 2 different mods.
the vertical hollow_log is Quark
the horizontal hollow_log is The Twilight Forest.

The only thing you can do is go to everycomp-common.toml to hide 1 of 2 hollow_log that you don't want to see on JEi or REI.