I had the same issue and I disabling the default for Wayland also resolved it for me.
(I had to uncomment the line #WaylandEnable=false in /etc/gdm3/custom.conf.)
Initially after updating from 17.04 to 17.10 I had no troubles. For me this mouse issue appeared some time after (not right away) using ppa:ubuntu-x-swat/updates for the latest Mesa releases.
By the way, also mouse hovering over an element that would usually focus on hovering over it did not work for me in a Wayland session.
I had the same issue and I disabling the default for Wayland also resolved it for me.
(I had to uncomment the line #WaylandEnable= false in /etc/gdm3/ custom. conf.)
Initially after updating from 17.04 to 17.10 I had no troubles. For me this mouse issue appeared some time after (not right away) using ppa:ubuntu- x-swat/ updates for the latest Mesa releases.
By the way, also mouse hovering over an element that would usually focus on hovering over it did not work for me in a Wayland session.