I have always heard, from the very first advice on painting model airplanes years ago, that silver has a bad, bad habit of delaminating.................... one reason some people do not use silver as a blocking coat, and Windy even pointed it out repeatedly on his videos (as he often had the problem, even expected it, it seemed). I know it wasn't Sig Silver, but it was still silver and it doesn't seem to make a lot of difference. Silver delaminates I guess!
Of course, I have the perfect solution to all your painting woes....... don't use so many colors and you won't have to tape off as much, lowering the chance of pulling up paint. Seriously.
Mongo