Casting is extremely busted, was hoping to use it for learning while running on treadmill but have tried multiple times. It keeps jumping to a previous video, no way to even skip ahead when it's casting to even work around it going to a previous lesson. Auto advance doesn't work either in casting. I have a unifi network with the access point near, new 4k Chromecast and pixel 6 so it isn't my equipment as I can cast multi other apps with zero issues. Can't get around with screen mirror either.