So when I was Looking up Tanks In Creative / NEI they are rendering very oddly

http://i.imgur.com/ZLelnoU.png

Can't really guess what's going on without more details. Optifine?

Yes Optifine 1.7.10_HD_U_D6
Using Latest OpenBlocks
With The Mods
AppliedEnergistics2, Backpacks, Battlegear2, BigReactors, BuildCraft, Carpenter's Blocks, CrayFish Furniture, CodeChickenCore, CoFHCore, EnderCore, EnderIO, EnderStorage, ExtraUtilities, FastCraft, FlatBedrock, ForgeMultipart, GravityGun, iChunUtil, IndustrialCraft2, IronChest, LiteLoader, Mantle, Mekanism, MekanismGenerators, MekanismTools, MineFactoryReloaded, MoBends, Morph, NotEnoughItems, OpenBlocks, OpenModsLib, PortalGun, StorageDrawers, Sync, TConstruct, Thaumcraft, ThermalExpansion, ThermalFoundation, TreeCapitator, TwilightForest, VoxelMap, Waila, Witchery

To add onto that they render correctly when placed down, After a restart the Tanks appear as normal