Camera Solving

Hi,
I need help for motion tracking. I’m trying to solve the shot. I guess it is a discursive(?) issue, but I set the trackers, but it didn’t work properly.
After I failed to solve the shot, I researched and recorded a video with proper object to have parallax in foreground and background and proper markers to track, but I still have high numbers of error for reconstruction. This is last work that I tried. I did reconstruction, but as you see that camera doesn’t moves properly. Any tips for this issue?

https://youtu.be/6IouZCchK4c

I just read that I suppose to have over 8 tracks between key frame A and B under the Solve tap in video clip editor, then What can I do what if I cannot have same tracks in whole footage, for example camera goes forward and tracks are keep passing.

https://youtu.be/DohOKKK1G24

I know that this footage doesn’t have proper markers to track, but any tips that I can solve the footage properly?

For the first clip I can only imagine that your track lengths are too short and not long enough to generate a decent solve. What solve error are you getting?

For the second shot, you can do offset tracking. So, you track a point, when it goes, or is going off screen. Select it, press GG and then move the tracker window to another point that is still on the screen. It is called offset tracking.