This happened to me when using Ubuntu Cosmic Cuttlefish with htop and tilix installed beyond the clean install. I was able to open the applications that are available in the dock and noticed the bar resizing when hovering over it.
Later multiple graphical bugs started to happen and in the next boot Xorg was failing to start. Rebooting again solved the login issues.
This happened to me when using Ubuntu Cosmic Cuttlefish with htop and tilix installed beyond the clean install. I was able to open the applications that are available in the dock and noticed the bar resizing when hovering over it.
Later multiple graphical bugs started to happen and in the next boot Xorg was failing to start. Rebooting again solved the login issues.