Discover is hanging and doesn't update anything

[Artiom Neganov]

After recent upgrade from 17.10 to 18.04 Discover just stopped updating the system. It informs me that I have new updates, I run it, click "Update" and then... nothing. When I try to close it, it's always saying it has some tasks to do. Well, I kill it and just update the system using apt-get.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: discover (not installed) // WUT? IT *is* installed. I have no idea why it's reporting like this...
ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18
Uname: Linux 4.15.0-39-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Nov 17 18:21:08 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-01-26 (295 days ago)
InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.2)
SourcePackage: discover
UpgradeStatus: Upgraded to bionic on 2018-10-29 (18 days ago)

[Scarlett Gately Moore (scarlettmoore)]

This bug is very old, if this is still an issue please update bug with info on a supported release.