Failure to eject/ bolt stuck

[prudii]

It still not working. Ive really got no idea at this point. Its not the bolt carrier ived tried two different ones. I cant find anything wrong with the bolt itself. Theres no obvious case damage and it will hand cycle a whole 20 rounds without issue. I plugged the chamber with a spent case and blew canned air down the gas tube and it came out the muzzle.

Im at a loss here. Probably just going to take it to a gunsmith at this point.

https://imgur.com/a/TZi3GWT