I had the same issue without the "Put Windows" extension. Anyway, I had the "Workspace Grid" extension, and it seems the same workaround (disable/enable the extension) applies: https://askubuntu.com/questions/1135465/unable-to-close-applications- after-update-to-19-04
I have not been able to check if this works, because finally I reinstalled the system from scratch (previously I had release-upgraded from 18.10 to 19.04), and the issue has not affected me since then. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1825585 Title: Application / Document search does not close when the "Put Windows" extension is installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1825585/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
