Flickering lights occurring with Netron EP4

Been using a Netron EP4 to run our lights for about 6 months with no issues. Suddenly last week when you bring the lights up some have begun flickering. Doing a full reboot of the PC seems to fix it but it’s obviously not ideal, would this be a EP4 issue or a PC issue?

Did you ever get a response on this? I’ve got an EP4 that’s worked flawlessly for months/over a year and over the weekend went haywire. Outputting gibberish on all 4 ports - firmware update and factory reset won’t fix. Unuseable currently

Is the EP4 powered via USB-C or POE?