I'm using the 12.9 ipad pro, when i try to import the file it simply is not selectable. i can't seem to attach the file in this message because its too big, but I'll try to upload it to the dropbox folder.
edit: I have uploaded the file to the dropbox folder.
Edit v2 : upon further investigation, I found out that the arw file has changed when I had it in my Dropbox, and no longer had the extension. The problem seems to be with google drive, since I Re-uploaded the file to Dropbox and it can now be imported, but the same file won't import from google drive.