[GREENFOOT-823] Scenario does not (always) open with double-click on project.greenfoot
Double-click on the project.greenfoot file should open a scenario.
This works if Greenfoot is not running, but if Greenfoot is already open, then the new scenario does not open correctly (process starts, but no window appears). (Observed on MacOS.)
- Issue type: Bug
- Priority: Medium
- Fix versions: 3.5.4