Almost forgot, I did try to open an existing project.
when I did that I got an error stating:
Failed to generate project files.
Running D:/Games/EpicGames/UE_4.25/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project=“D:/data/documenten/Unreal Projects/TSShooter/TSShooter.uproject” -game -rocket -progress -log=“D:\data\documenten\Unreal Projects\TSShooter/Saved/Logs/UnrealVersionSelector-2020.09.09-23.40.51.log”
Discovering modules, targets and source code for project…
ERROR: Could not find NetFxSDK install dir; this will prevent SwarmInterface from installing. Install a version of .NET Framework SDK at 4.6.0 or higher.