Videos taken on Sony A7iv not importing correctly to iMovie (only sound, black screen)
I am trying to import a 4K 10 bit 4:2:2 XACV-S video to iMovie running on a Mac mini with OS Sonoma 14.6.1. The file imports, but it shows up as completely black. I hear the sound, though. I have been surfing for answers and had a suggestion to change the file extension to .mov (it is stored as an mp4 in the camera) by first storing it on my hard disk, changing the extension and then trying to upload it to iMove from the HD instead of directly from camera. That doesn't work at all. The file is greyed out and impossible to import.
Not sure if I am missing something here, but would appreciate any help.