I've found a bug in the video implementation when using the core profile. The problem is when we load a Video or MediaPlayer element with a source video, the first time it plays fine, but if a second loaded video has a different size, it will display it incorrectly. If we then load the first again, it will display correctly. I have attached an example with videos included to demonstrate this bug.

How to replicate the problem. Open the test, choose 1 video and toggle between the others. The first video you chose will always render correctly. Close the app and choose another as first video and toggle between them. You will understand what I'm saying.

This problem happens specifically with Apple Silicon with an M1 processor. Everything is alright on Intel Macs.