Checking my logs, 6 March was the end of a long weekend when this bug occurred for me. So a large number of updates happened at once, including:
mesa 17.3.3-0ubuntu1 -> 18.0.0~rc4-1ubuntu3 mutter 3.26.2-1build1 -> 3.27.91-1 gnome-shell 3.26.2-0ubuntu3 -> 3.27.91-0ubuntu1 wayland 1.14.0-1 -> 1.14.0-2
gdm3 and xorg-server remained unchanged when the regression occurred, so at least we can exclude those.
Checking my logs, 6 March was the end of a long weekend when this bug occurred for me. So a large number of updates happened at once, including:
mesa 17.3.3-0ubuntu1 -> 18.0.0~rc4-1ubuntu3
mutter 3.26.2-1build1 -> 3.27.91-1
gnome-shell 3.26.2-0ubuntu3 -> 3.27.91-0ubuntu1
wayland 1.14.0-1 -> 1.14.0-2
gdm3 and xorg-server remained unchanged when the regression occurred, so at least we can exclude those.