I managed to reproduce it constantly. Problem appears only when Remmina is active and "Grab all keyboad events" pressed. When you try to capture area of Remmina window, ​Gnome shell freezes after pressing "Take Screenshot" button, window just reappears and no image captured.
** Attachment added: "Screenshot from 2021-10-07 10-43-27.png" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1946258/+attachment/5531212/+files/Screenshot%20from%202021-10-07%2010-43-27.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1946258 Title: Panels unclickable after screen area capture Status in gnome-shell package in Ubuntu: Incomplete Bug description: When I try to capture screen area using gnome tool, mouse pointer changes to a cross and it is impossible to click on left or top panels. Closing gnome screen capture toll does not help. I am only able to do Alt-Tab, Ctrl+Alt+T and Ctrl+Alt+Del. Logoff and Logon help to fix the problem. It appears more often when Remmina is active. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell-extension-ubuntu-dock 68ubuntu1~20.04.1 ProcVersionSignature: Ubuntu 5.11.0-37.41~20.04.2-generic 5.11.22 Uname: Linux 5.11.0-37-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.20 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Oct 6 22:50:35 2021 InstallationDate: Installed on 2020-07-10 (453 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) PackageArchitecture: all SourcePackage: gnome-shell-extension-ubuntu-dock UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1946258/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
