BuildCraft version: 7.99.15
Forge version: 14.23.2.2624
Link to crash report or log: N/A (did not crash)
Singleplayer or multiplayer: singleplayer
Steps to reproduce:
Additional information: Cannot open chests (trapped and normal) on any gamemode (creative, survival etc.). Buildcraft and Optifine are the only mods installed.

known optifine issue, remove or update it
forge changed things and optifine is conflicting with it