I am sure this has been discussed but I cannot locate it by searching the forum.
I am running a pretty simple show with 1 output at 3840x1080 and 1 at 1920x1080.
I am getting a block of pixels that drop out after the software has been running for an hour or two. It is not always in the same output.
Only fix is to completely exit out of Millumin and then restart the application. Once I had to reboot the computer completely.
Currently running 2.17.q