Just to confirm, you mean that the Signal app runs as expected when you enable the compatibility mode but not when you run it as normal on Windows 11 system? If this is the case, we can only suggest that you contact the Signal support team to see whether it’s going to affect the compatibility mode as well.
Please try enabling the Use legacy capture mode feature in the Host Settings -> Other tab following the steps listed here. After enabling the feature please restart Host to apply the changes.
Unfortunately, Remote Utilities does not support the feature that allows you to view the Viewer’s screen from your Host computer. In order to do so, you would need to install Host or run Agent on your Viewer computer and run Viewer on your Host machine respectively.
Could you please try fully uninstalling Viewer following this guide and see if reinstalling it might fix the issue? Make sure to also back up your existing address book prior to uninstalling Viewer.
Could you please try switching the keyboard input method to Unicode in the Connection properties -> Keyboard tab and see if this might help to resolve the issue. Make sure to fully exit remote session prior and re-connect to the remote Host once again to apply changes.
Please make sure to add Remote Utilities installation folder to the exception list of any antivirus software you might be using. Here’s a guide with helpful links on how to do so.
Could you please let us know what happens after the command is executed but uninstallation did not work? Do you mean that Host is still installed and functioning or that some files/folders are left behind?