What a timely topic. I also had a camera animation matching problem and was just about to post it when this topic happened to be at the very top of the forum.
I used 3dsmax and exported a baked animated camera from frames 1-6. It is basically a manual cubemap camera rotation since I did not want to render or use a spherical panorama.
Frames 3&4 get really funky, with the camera nearly rotating 45-degrees off horizontal. Even frame 2, although it looks right when rendered, does not seamlessly match frame 1. The kicker is that the 3D preview window looks spot on.
I have not tried turning off motion blur yet, and if that works, it would be a fine solution since a cubemap does not need any motion blur. But if this wild camera swooping is caused by something else, I'd love to know. I'm using TG 4.1.18.
I've attached files for anybody to try out. There is the .tgd file of course, but if you want to begin with a brand new TG session, simply import the FBX file; it only has a camera and animation to import and is already in meters for units.
Thanks,
Matt