I've see that we have different post about mines, but I think that this problem until now wasn't reported.
I've tested some AP mines and I have found that:
APERSTripMine works only outside
APERSBoundingMine works good outside (inside you have to run several times over them to blow up)
APERSMine are "the best"... outside or inside they would make their job
I've just tried on my editor preview until now