To resolve effectively most of your display issues, in Remote Desktop Manager macOS , click on Window - Reset Layout
In the case it did not resolve your interface error, close the application and delete the layout files (*.lyt).
- Open Finder
- Click Go in the menu.
- Select Go to folder
- Paste this path: ~/Library/Application Support
- Open the folder: com.devolutions.remotedesktopmanager or com.devolutions.remotedesktopmanager.free
- Locate and delete the RemoteDesktopManager.lyt or RemoteDesktopManagerFree.lyt file.
Launch Remote Desktop Manager macOS