Oh, thank you. After a few scares today I'm just really jumpy about any problems. My Black Unicorb pet has been 'Blackrobed' for a week now. It doesn't effect use, I can still summon it, ride it, and it appears normally in game, but on the Character Select Screen it appears 'Blackrobed', which scares me a bit, but I'm told it's just a cache error and nothing to worry about if the pet still works~
If it's due to the cache on your side, just go to %%/my documents/Mabinogi/cache\
petname@mabius
#.tmp.
Find the name for your pet, it will be followed with @mabius and a number, the number just tells you what server the pet is on, and is a .tmp file. Delete the one for your pet that has this problem. Should make your pc call the pet from the server next time you load the game, which should theoretically fix the problem.
You should be able to safely delete any .tmp file in the cache. There is a .plst file in the cache though, i advise not touching it. It remembers the order of your pets, and deleting it can mess up hotkeys for summons.