Oculus Link Desktop Streaming No Longer Working

I connected my Oculus Quest 2 for the first time in a few weeks to my PC to continue some UE4 development.

I was given a notice in Oculus Link to take off the headset and review Oculus App updates.

I followed the Oculus App update notifications and restarted my PC (Oculus App Version 57.0.0.254.153).

After this, the 'Desktop' function in Oculus Link started showing this yellow '!' icon. (where previously it showed a live stream of my PC)

I restarted the headset which showed what looked like an SD card icon and an update progress bar. I thought ok great maybe the headset firmware just needed an update too.

Unfortunately, after the headset update I am still seeing this error: