I shift-clicked the X, next to the
F for saving a data block; did I just erase all the info from the solve? I thought the tracking info was linked to the Camera, not the video clip?
Also, I moved file locations of both the .blend file and the movie clip file. Moving the movie clip file seemed to "unlink" the tracks from the movie clip, I re-opened the movie clip file and it was now Movie-Clip.001, but at that point the tracks were still there, linked to the camera.
Now, after shift-clicking the X for the movie clip data block thing (and saving, closing blender, and re-opening blender), it's all gone, no tracks, no markers, the camera doesn't move or anything.... I'm going to re-track the movie clips; I just want to know what NOT to do next time. I hope this makes sense.