Hi,
have these problems too with many skins, were the serialnumber is overlapping the original one, even if sn is empty in the code box..
Its mostly when DECAL has 12 entries instaed of 16 in the lua. files.
Dont know wich are the exact files for the SN or for SQN letters. I have to search and compare them. I am not a skinmaker, never made one but with time maybe i can solve it.
Nearly solved all skins, have to do 2 more but now i am tierd and going to bed.