If I open AA in Optifine, the textures of pipes will lose.

BuildCraft version: 7.99.19
Forge version: 14.23.5.2768
Link to crash report or log: Nope
Singleplayer or multiplayer: Both
Steps to reproduce: 1. Open AA in Optifine; 2. Restart minecraft; 3.Textures are losen.
Additional information: Nope