Not importing XAVC Intra (Work Stoppage)
I am editing a project for a client and I am stuck, and there is a deadline looming. My source material is XAVC Intra. When I attempt to bring in to Premiere either through the Media Browser or through File>Import, the result is an audio-only clip, no video. I also tried to bring the footage into Media Encoder and After Effects, with same results. After reading about other issues with XAVC format in Premiere, I downloaded Premiere Beta, but had simiular results. Thinking that perhaps Black Magic Desktop Video was somehow interfering, I uninstalled it but still had the same issue. I took the media to an edit facility also running Premeire 15.4.1, and had the same result. I can open the file just fine in QuickTime Player v10.5 and in Final Cut Pro 10.5.4, but not in Premiere 15.4.1. If I don't get this resolved today (10/5/21), tomorrow morning I will be forced to transcode all of the footage in QuickTime to H.264 (removing timecode, lowering resolution and minimizing color imformation) and eye-match the edits to the rough cut. I appreciate any help in this issue.
MacOS Big Sur 11.5.2
Premiere 15.4.1 (Build 6)
iMac (Retina 5K, 27-inch, 2017)
Processor: 4.2 GHz Quad-Core Intel Core i7
Memory: 64 GB 2400 MHz DDR4
Graphics: Radeon Pro 580 8 GB