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[DJI_Support ]
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Hi there, please make sure that the drone and controller have been updated to the latest firmware version, you can refer to this tutorial and see if you can initiate tracking: DJI Mini 3 Pro | How to Use the Intelligent Flight Modes - YouTube
Please note that FocusTrack is not available while recording 4K/48fps, 4K/50fps, 4K/60fps, 2.7K/48fps, 2.7K/50fps, 2.7K/60fps, 1080p/48fps, 1080p/50fps, 1080p/60fps, and 1080p/120fps video. Make sure that the camera is set to the corresponding framerate.
I also edited the post to Mini 3 Pro