GPU not available to VM after power failure

[Husker_N7242C]

Hi guys, as the title says, I had an RX570 passed through to a VM OK for the past few months (except it won't reset when you reboot the VM) and following a power failure it can't be allocated to a VM (isn't an option in the drop-down, just VNC). The RX570 DOES appear in Devices (as below) so I'm a bit miffed.

[1002:67df]09:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev ef)

[1002:aaf0]09:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590]

 

The GTX Titan doesn't get used for VMs, that just does the GUI output and renders video for PLEX docker (Hardware Encoding).

 

Logs are attached so any advice would be appreciated. I've got trouble with USB devices also so if you see/know anything I can do to get USB passthrough working well with this hardware please let me know, I'd really appreciate it.

 

nas-diagnostics-20200209-0822.zip