Syntheyes 3D Track with Planar Features


I have a shot where the camera moves in a room on a door and on the door
should be placed in 3d something and as long as the whole room is to
see everything is ok with the solve only at the end where then only the
Door is visible and all points are just flat on the door it starts to
wobble strong! Unfortunately, I am not an expert but I am very
interested in Vfx Hobby. So if possible not too complicated terms and
answers. Thx