I suspect this is a bug in GTK+2, which is still not fixed upstream. They've fixed it in GTK+3 only, that's why in MATE GTK+3 mate-display-properties doesn't crash.
I've linked the upstream bug report here.
I suspect this is a bug in GTK+2, which is still not fixed upstream. properties doesn't crash.
They've fixed it in GTK+3 only, that's why in MATE GTK+3 mate-display-
I've linked the upstream bug report here.