I also have issues sending video over MMS. I think the issue is just the design of MMS. It was designed back when dumbphones ruled, so it was designed to have

I also have issues sending video over MMS. I think the issue is just the design of MMS. It was designed back when dumbphones ruled, so it was designed to have cell networks transcode media into a compatible format for the target device. The cell networks don't want to spend the cpu cycles or perhaps engineer time to do it properly. Perhaps RCS[0] solves this issue, but I think everyone will have switched to WhatsApp, et. al by then. [0]: https://en.wikipedia.org/wiki/Rich_Communication_Services https://en.wikipedia.org/wiki/Rich_Communication_Services