In Origin 2024b and earlier versions, when users keep Origin project open quite some time and on many occasions, they forgot about it and launched the same project just by double-click. It opens the second instance of Origin without any warning that the same project is already open.

In Origin 2025, when opening a project and Origin found it to be read only, Origin will check that it has already been open by another instance, then will show a message to inform users so they can cancel. After that, Origin will tell that instance to activate to the front.