I purchased a RavPower hub with SD card reader to try and transfer photos from my DSLR to my iPad Pro for editing. RavPower said IOS does not support RAW import (I asked after I ordered). So I tried it anyway, I used file browser for business and I was able to get the photos to my ipad, but when I drop them into affinity photo when I click on the circle acknowledging it is a raw file the program crashes. Does anyone have any suggestion for importing RAW images?