Apple M1 + Blackmagic VideoDeviceOut - Output Pixel Format crash

I am getting a fatal error when I try to change the ‘Output Pixel Format’ to anything other than the default 8-bit when using the Blackmagic Ultrastudio 4K Mini with both my M1 Macbook Pro & M1 Max Mac Studio. I am running the latest versions of TD & Blackmagic drivers.

EDIT: did some more testing and expanding this report to include Decklink 8K Pro via Thunderbolt enclosure.

This seems to work more reliably with the Ultrastudio 4K in 2023.11290. I had one fatal error when switching to 10b but after that it now seems to work up until DCI 4K @ 12-bit.