Galaxy S3 running Alliance rom v22 with (though I had the same issue with v21).
Using Nova Launcher 2.3 or TW Launcher (haven't tried any other launchers)
When closing an app or the app drawer using the home button, many times the screen just goes black. I have to hit the power button to turn the display off, then again to turn it on to get anything to show on the display. I thought it may have been something with the Nova Launcher, so I tried TW, and had the same issue. I have done multiple clean wipes and installs with this and the v21 Alliance rom. Not sure it matters, but I am currently using the Beans Stock kernel, but saw the same issues with the Lean kernel.
This happens at least 10 times a day and is getting very aggravating, to the point where I went back to the 4.1.3 Jelly Beans rom after trying v21. I came back when v22 was released hoping something may have changed. Does anyone have any ideas of settings I might change or something like that that could fix this? Thanks!