I get these Error loading part definition for parts\ladder1, skipping: Input length = 1 Error loading part definition for parts\telescopicLadder, skipping: Input length = 1 Error loading part definition for parts\telescopicLadderBay, skipping: Input length = 1 No idea why all these parts should be first party and the cryptic error 'Input lenght = 1' does not really help me Anyone got any ideas?