There are no unarmored frames for Cassidy, so he uses that character model instead. Apparently that one is lacking weapon frames, but who's gonna play with him unarmored anyway? Your first problem sounds like ha has crippled limbs as mentioned. That doesn't sound... eh... normal. I wonder if you are missing some frames for Sulik in leather armor. You could maybe try a reinstall of the RP Mod or wait for someone to give you better advice.