USB issues on series 500 motherboards acknowledged by AMD

[Quentin79]

Finally:
https://www.reddit.com/r/Amd/comments/lnmet0/an_update_on_usb_connectivity_with_500_series/

[xeizo]

It started with the V2 bioses for me, I had UR22C working flawless in USB 3.1 gen 1 mode and from those bioses it went disconnecting on both CH7 and B550-F. Switched to USB 2.0 and it works, but yes it has been wonky. The latest batch of AGESA 1.2.0.0 feels generally more stable on four of my boards(CH8, CH7, B550-F and X470-Prime Pro). Never had keyboard/mouse disconnecting even though I run RTX3070 in PCIE 4.0.

[Quentin79]

Fix coming from AMD through BIOS update!
https://www.reddit.com/r/Amd/comments/m2wqkf/updated_agesa_coming_for_intermittent_usb/