3D Camera Tracker bug? Tracking points are holding still and not corresponding to the picture.

Please ignore the slider control on the left-hand side.

But um as you can see, I've tried to track three independent shots with the 3D Camera Tracker effect, yet the tracking points are always at the same place holding still. And the effect always shows that the analysis was finished instead of failed.

The 3D Camera Tracker is on its default value, and the videos are just mp4 footage. I tried to precomp them before using the 3D Camera Tracker effect yet its still not working. Anyone knows how to solve it?

Or there is an alternative way to do it?

BIG BIG THANKS!