Welcome to the forum! :)
After a firmware upgrade, sometimes weird issues non-specific to the firmware can occur, or features don’t work properly.
Try the following in sequence:
1) Hard Reset
Press the reset button on the side of the unit. Unit will reboot.
2) Reset to Factory Defaults
Go to Settings > System Setting > Reset to Factory Defaults. Unit will reboot.
3) Power Cycle (aka ‘Pull the Plug’)
Unplug the power cord from the unit. Let it sit without power for 5-10 minutes. Plug the power back in and the unit will power up.
The above is pretty much mandatory following firmware changes as sometimes things don’t “bed-in” as they’re meant to. I suspect that it’s a flaw in the firmware update procedure.
No news yet on when the next firmware will come out. We’re all eager to see various issues resolved. When it’s working, it’s a great media player.