Does not pass the validation test multiples

Anybody know what causes the number of times the "xyz does not pass the validation test" error pops up? I know what causes the error itself, but it seems like sometimes when I have a typo in one pmap the error pops up twice, sometimes thrice, sometimes more. I thought it might be related to the number of pmaps currently set to whatever price type it is, but that doesn't seem to be it.