I have some questions about this:
1) Did you spray the Triple Thick on horizontally, nice and thick, in warm, low-humidity weather?
2) Are you 100% certain that the paint wasn't also lifting in those areas to begin with, even if it hadn't yet flaked off? Because you could just be seeing old damage that you didn't notice at first, perhaps because the Triple Thick moved the loose areas a bit?
3) Did you use Krylon brand Triple Thick?
Thanks