After updating Minecraft on our switches and an Amazon fire tablet to V1.20.61 (switches) and V1.20.60 (Amazon tablet) connecting to friend's worlds no longer works between the switch and Fire Tablet. World shows up in the menu, tries to connect, then gives the error "unable to connect to world." The switch can connect to worlds hosted other switch consoles, but can not connect to worlds hosted by the fire tablet, as well as the player on the fire tablet can not connect to worlds hosted by a switch console. 

We have tried restarting all devices, restarting wifi, checking all settings, firewalls, ECT. This bug has made multiplayer impossible across these two different devices.