I had it when i make the Flans Mod Engine (V12, V8, V6, V4, Rotary Engine) faster.
Then i see the Carpenter Bed ist black and violet. When i place the Bed it is normal but when i right click it with a hammer it missing the texture for ever! I unistall the Carpenter Mod 1.7.10 and download it from curse again and place it in the Mod folder. And it happen again help! I don't touch that folder from Carpenter Mod. Here:https://imgur.com/a/78BeE

The cache file may not have generated for patterns. Would you please provide the log file after loading into the main menu.