help with video to make transparent. keep getting black background.
Hello everyone, so I keep following tutorials on how to get rid of the black background I keep getting. I triple check that my output is set to quicktime > RGB + Alpha. I double check that there is no background color with the trasprant screen. Ive added the keytone too and that doesnt work. Ive exercised everything and still cant make it work. Anyone would be able to help assist me?! either i could send it out to someone or sit in a discord call with?!
Here are some screenshots of me trying again..... hope this shows my flaw i cant see 



