Extended tracking cannot be activated programmatically

Vuforia SDK Version: 7.1.34 - Description with steps to reproduce: Hi, I’m trying in Unity to enable/disable programmatically the extended tracking function on a single object type from a cloud target. If I enable extended tracking on “Image Target Behaviour” from inspector in unity the augmentation works as intended, but disrupt the behaviour of other augmentations that don’t need the extended tracking. I’ve tried to enable in that way but the “extended tracking” flag does not became true, nor it works at all. if (targetSearchResult.TargetName == AugmentationObjects[0].targetName) { Debug.Log(“FD:: enabling extended tracking”); imgTargetBehaviour.ImageTarget.StartExtendedTracking(); } else { imgTargetBehaviour.ImageTarget.StopExtendedTracking(); } I also tried the code in your article ( https://library.vuforia.com/articles/Training/Extended-Tracking.html ) but it does not work at all since “startExtendedTracking()” method cannot be found. Is it intended or is a bug? Can you please help me to start and stop dynamically the extended tracking feature on the cloud object? Thanks in advance. - Development OS (Mac OS X, Windows, Linux): Mac OS X - Mobile OS and Version: iOS + Android latest OSes - Mobile Device Manufacturer and Model name: Apple + Samsung - Do the Vuforia Sample Applications show the same behavior?: programmatical behaviour not present in Vuforia sample application