There's no such thing as 'UID mismatch' kick here, we dont put any restriction on changes of players' UID(but you can still be punished if you change UID to break rules).
It's also not a script bug. It happened because either your UID, UID2 or IP matched the one that he was using during the ban. You might also get affected by the ban if you ever shared PC or internet with him( well, it's also possible that you got his previous IP in case you are using dynamic IP even though the chance is low ). But that's how ban is supposed to work so it's not a bug from the script( well, if it's VCMP's bug then we would have to update script to avoid stuff that's bugged ). Anyway, we would have to remove the trigger that affect you but I could not confirm whether it was your UID, UID2 or IP that matched the ban( actually i can, but it will take longer due to the number of records we have, besides i'm quite busy with personal life ). But i did a little update to show message of your UID, UID2 and IP when the ban is triggered so just PM me the picture when it happens again.
Due to my tight schedule, it might take a while before i reply...