Essentially the usb device connects for about 2-3 seconds, then disconnects for about 2-3 seconds, then reconnects... This also happens if I pass it through directly. If I install the spice-tools the mouse disappears, but even then the USB doesn't work. The error is the same but not exactly the same behavior as this; i.e.
Notably, I'm using an nvidia 1060 and applied this because the normal method doesn't work.
I am currently using a spice display in conjunction with direct 1060 output as that way I can more easily share my keyboard / mouse. When using an AMD card this wasn't an issue.
Also, for some reason at random times the sound gets super staticky, and this seems to also sometimes be triggered by plugging in a usb. Notably, this stops happening if I use an LVN screen instead of spice.
QEMU emulator: 5.2.0
Alternatively, is there a way to pass through USBs using the LVN screen?