I have the same issue on multiple android devices. Fire Stick, Galaxy Tab, Pixel 3 xl, Pixel 4 XL. I do not really want to have to side load an old APK onto these devices for what should be a simple fix. It worked before so it shouldn’t be that hard to find what was changed.
Edit. Fire Stick might have been user error by one of my users. My Fire Sticks on the local network seem to play fine. There may still be a problem when remote play but I can’t replicate on my fire sticks on the local network I was just repeating what a user told me.
