I have a Unity project where custom Vumarks are used. When I deploy the project on Android, everything works perfect. Vumarks are recognized/tracked very fast and stable. But when I deploy on iOS the Vumark recognition and tracking is unusable. Even on the most recent iPhones. It recognizes the Vumark, but just from very close distance and loses tracking almost directly. Why is there such a huge difference compared to Android? Is there some setting I miss on iOS? Is this issue known? Thanks for every hint!