Synchronization problem between image and camera info using apriltags

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Hi there,

I am trying to use apriltags_ros package with Kinect v2. Keep getting the same warning saying image and camera info are not synchroniized. I'm using libfreenect2 and ros kinetic.

Image messages received:      189
CameraInfo messages received: 189
Synchronized pairs:           0

Having a look at apriltag_detector.cpp it is not entering the image callback, I think thats at least the immediate problem but I don't understand why. Could use some help, thank you