I've had the same issue I have a ten player realm plus subscription and none of the players or myself have been able to connect to it on PC, Xbox, or iOS.
No I didn’t I’m sorry I just downloaded it and it fixed it thanks so much.
Yea my Bedrock Realm I still Notice the issue on the most recent release and It appeared on both Xbox and Windows 10.
I have had this same issue I have uninstalled reinstalled resized the window and went from full screen to windowed and absolutely nothing has made the buttons reappear.