Another bug (let's call it Issue-5) that metacity 3.18 has while marco (no matter gtk2/grk3) doesn't has, is that some window is lacking rendering by metacity once it is launched from gnome-panel. Gedit always lack rendering. See the image which is using metacity 3.18.[any].
Replacing with marco and you can see those windows never lackes rendering (their body view) ** Attachment added: "VirtualBox_minion1_01_05_2016_03_34_39.png" https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1538111/+attachment/4652355/+files/VirtualBox_minion1_01_05_2016_03_34_39.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1538111 Title: untraceable serious bug in metacity 3.18 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1538111/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs