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.