Got it.

Apparently, .mov files will not play through the @15671 interface.

When I tried to view the first one from my @12 page, everything loaded fine... it just wouldn't load through my Twetch page.

Interesting bug...

.
https://twetch.app/t/4db224c53a9d5dbc3e5e19c7880c97a237a3ebb0dd483cf39fc7f04e6a1e6ed0