I've been having an issue with the modular powersuits mod, where whenever I use an item from the mod my screen glitches out, how I would describe it is it spazzes massively and only let's me view through a small hole in the "glitch"
What's most frustrating about this is I can't figure out the source of it, I'm using neither a texture pack, nor optifine.
The cause as far as my knowledge goes, is it could be the portal gun, but not being a coder, I'm not sure at all. The only reason for me thinking this is if you middle click with the portal gun equipped it zooms in.
The way I have been getting past the glitch is closing my client fully, and restarting without using modular powersuits at all, which kinda sucks cuz I want flight, and I don't wanna build an ic2 jetpack or gravity suit.
(I'm using the ftb unleashed pack, and have added treecapitator, configured it to be dense ores, have the display settings to be maximum resource required, but I tried changing those while I was having the issue, and it didn't help at all. I have xeno's, and better enchants activated, and one other that I can't think of the name right now.)
If it helps, with better enchants you can enchant ic2 drills, and get soul stealer and normal swords.