I've tried reproducing the issue in Fedora 28 daily live image to see whether the problem is specific to Ubuntu or not. Using the same computer, I was unable to reproduce the bug. Could this be related to some of the Ubuntu-specific patches?
Moreover, If I remember correctly, when I tried Ubuntu 18.04 daily live image on April 17th, the top bar and shell dialogs appeared to be properly displayed.
I've tried reproducing the issue in Fedora 28 daily live image to see whether the problem is specific to Ubuntu or not. Using the same computer, I was unable to reproduce the bug. Could this be related to some of the Ubuntu-specific patches?
Moreover, If I remember correctly, when I tried Ubuntu 18.04 daily live image on April 17th, the top bar and shell dialogs appeared to be properly displayed.