To be more specific - there are differences between the European and US english versions of Ego Draconis which is what is causing your problem.

The version of FOV you downloaded was for the European versions of Ego Draconis. We've fixed this now so that the English versions of FOV available on the store work with both US and European versions. The updated version should be available within the hour from the vault. We'll drop a note here when it's available.