DaVinci Resolve and 200% Respeeds with Arriraw material

Hi,

I'm having a bizarre issue with 200% respeeds when conforming in Resolve 9.0.3

All material was shot at TRUE 24. So naturally if you apply a 200% respeed you expect it to skip every other frame.

01, 03, 05, 07, 09, 11 etc

For some strange reason Resolve seems to follow this pattern to a point (that point isn't the same all the time)

So for example it will go

01, 03, 06, 08, 10, 12.

Any ideas as to why it may make this jump??

Many Thanks