Callum - Sorry for the slow response, Attached are two files: "_108007" is a RAW file shot in January; it opens fine in AP IP. The other was shot in April - "P4210007"; it will not open in AP IP. A few points:
1) Both files open just fine in AP on my iMac. Both the IMAC and the IPad (Pro) are running latest versions of AP and OS.
2) The first shot was taken with an EM-1 II; the April shot was taken with an EM-1 III.
3) In Finder and Preview on the IMAC, the first file shows the image for the RAW file. The later file appears with no image, only the Affinity logo (the corresponding JPEG files for both appear identical).
Thanks in advance for your help!
Tom
_1080007.ORF
P4210007.ORF