In my 1.8.9 modpack I have Neotech-1.8.9-2.4.4 and was noticing when you go to configure and pipe in the I/O Config tab the middle pipe model was missing (just a blue default cube)

So I made a fresh 1.8.9 install with just NeoTech and added my other mods one at a time to see what was causing it and found for some reason BetterFoliage would cause this to happen.

Just curious what could cause a none foliage based thing like a pipe model on a gui tab disappear.

It is possible they are doing some changes to the block renderer the are causing my render to be translated wrong or just not working. I've seen a lot of mods injecting or replacing vanilla code to get some older access back and it tends to cause issues for the rest of us. I'll look into it

Removing pipes