This isn't a major bug with the new patch, but with both 13.6 and 13.7 I have noticed that my Senpai Tertius Decus Armor Coat ( I think that's the correct spelling) the reddish-brown one, will now turn black when I exit my Yalmaha. I don't know if anone else sees my coat as black as I haven't asked them. First time it happened I had to do a quick check to see how I had suddenly gotten a Nano Cloak, hehe. I suppose I won't see it anymore as I just traded for a higher QL Hanshi coat
System specs:
Athlon 1.4 GHz
128 MB RAM (I know, I know, I really need more)
64 MB ATI Radeon VE
SB Live sound card