Unity version 2019.2.0b2 VS Code version 1.34.0 Using a mac 10.14 When double clicking a .cs file in the Unity editor, VS launches and the .cs file opens. All good. However, if I try to open another .cs file from the Unity editor (same project), then the VS Code application is shown, but the file does not open. If I quit VS Code and try opening the file again from Unity, then the file opens OK. I've tried to resolve this by modifying the External Script Editor Args "$(ProjectPath)" -g "$(File)":$(Line):$(Column) in Unity, and also trying to edit the VSCodeScriptEditor's OpenOSX() function - neither have worked. I can open files from terminal using the command line arguments OK. Have verified that files open correctly using Unity 2018.3.8f1 Driving me mad, any suggestions would be appreciated!