When I updated my system yesterday with "apt-get dist-upgrade" (03rd June 2016), I found that my mate apps such as pluma and eye of mate no longer worked. When I executed them from the command line, I got this message:
Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported
My OS is Sparky Linux, OS version 4, OS Code Name: Tyche, Kernel: 4.5.0-2-amd64.
My version of Pluma is 1.14.0-1 and eye of mate 3.20.2-1. I have tried uninstalling and reinstalling all of mate with no luck.