@Darksky wrote:
I do not know what DE you are using but yesterday I built the mate image for the pi4 with buildarmoem and it had some glitching going on when clicking on a program icon to launch that was on the task bar with the latest versions of programs installed. I could not narrow down if the problem was mate or mesa. Strit suggested to install mesa-rc 19.2.0-4 in the repo and the issue went away. It seems that mesa 19.1.7-1 had issues with mate that I was not experiencing with xfce.
Mesa 19.2 is supposed to be in the repo in a few days.