The project was created in Unreal Engine 5.7, and Unreal Engine projects are unfortunately generally not backward compatible, so it cannot be opened directly in 5.4.
I tried opening it in 5.4 to check if it might work, but the data was not visible.
However, projects usually work when opened in newer versions of the engine (for example 5.7 → 5.8 or later). At the moment I don't plan to provide versions for older releases.
