com.apple.ImageCaptureCore error -9934
I'm getting this error message when trying to import videos from my iPhone 6s in the photo app on MacOS. Photos are importing fine, it's just videos that generate this error message. They're all taken with the regular iPhone camera, so no funny formats.
I have read previous (very old) posts on this issue that resolved it with changing permissions of the Picture folder, but that hasn't worked.
iMac