Airdrop file size limit

Yes, of course. Troubleshooting 101, right? It turns out the resolution is quite a bit more complicated because it seems the issue is simply that we're dealing with a corrupt video file. That's the consensus after a few hours of troubleshooting and a phone call with Apple.

The file is one captured by the 3rd Party app, "ProCam 7" I have some suspicions about what the issue is, but fully theoretical. I've considered the fact that the video file was captured in a new (rather untested) "4K Max" format, and the issue could simply be a software bug. I've also considered that the video was captured with the H.265 codec (I believe Apple introduced), which has caused me complications with file interpretation before. Ultimately, I'm trying to replicate the problem by re-filming myself for an hour with the same phone, same settings... and then filming myself again with alternative settings.

For now, the bottom line is neither Apple or ProCam has been able to account for the mystery of not being able to transfer this file to another device. Interestingly enough, the file can be viewed perfectly within the ProCam app on the iPhone. I don't know. I blame the pandemic.

Any other solutions/recommendations are welcome.