Fixed for me too. Installed the -proposed updates for both bamf and unity related packages.
Interestingly this not only fixes the brokenness in the Unity 5.12 -updates package, but it also fixes a slight cosmetic glitch from the Unity 5.10 (previous version in precise) package too: on that version, upon opening Gimp two icons would momentary show on the launcher, then one would disappear a moment later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995916 Title: No launcher icon or Alt+Tab entry for Gimp windows To manage notifications about this bug go to: https://bugs.launchpad.net/bamf/+bug/995916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs