Resolve 12 recogises some AF101 clips on a card, but not all

OK, this is odd. I came back from a shoot. The settings were the same for the whole shoot and I can load them all into premiere but in resolve only some clips show up (I was trying to import them into the media pool).

00003.MTS, 00004.MTS, 00008.MTS, 00006.MTS, 00017.MTS & 00022.MTS show up. The card has clips 00000.MTS-00028.MTS.

Very odd, what's going on?

Ben