Ok,
The issue was f.lux.
I de-installed f.lux and now everything is working properly. I must have installed f.lux around the time Falcon was updated to 1.1.3
Btw,
I already did the usual troubleshooting; reinstalling, higher my buffersize, change the renderertype (openGL on/off), try different DAW’s. Updated my drivers (AMD, Intel, etc…). I can’t try another computer however.
No. The usage on my system is the same, with the UI opened or closed. But the sound gets stuttery. Weird issue.