Stop in for a cup of coffee

yeah.. i was only doing partial panels so when i primered i taped off and primers upto the tape and figured meh.. i'll just sand it smooth and then paint over em.. and they just never seem to go away.. i think it was frodee that saw a pic and warned me bout it and he was right
Only way to get rid of that line is sand the edge down to metal or bondo at this point.