Hi Graham….thanks for your detailed message. Here’s what I have:
1 – Agreed, same with me. This all started after 10.4
2 – Happens on my 2 machines one of which runs Sierra, the other runs High Sierra.
3 – It doesn’t seem to matter how big the file is, or at least I never get far enough to find out since FCPX crashes immediately on SxS card insertion. If I copy the BPAV folder over to the RAID, it crashes on import command, so I can’t import anything, BPAV or otherwise.
4 – Doesn’t matter, short or long, it crashes on card insertion or upon program launch if a card is already in the reader.
5 – Ugh.
6 – Infuriating doesn’t begin to cover it. I’m about ready to jump ship and go to Avid or Adobe.
I wish I could use your workaround, but since FCPX crashes on import, there doesn’t seem to be any way to get ANYTHING into the editor.
Sigh……………