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I am in the process of finishing my first own blender project (woo!) and have encountered some interesting behavior.
The camera seems to be jumping/skipping whilst tracking, causing my text rendering to do the same.
Here are a couple gifs to illustrate my points.
GIF #2 ( >2 MiB)
When I solved for camera motion I got an error 1.5. Is this a result of that? If so how can I get a smaller error? More trackers? The footage isn't the best to begin with but I want to salvage what I can.
I've consulted this question on picking good keyframes as well as this question for tracking round objects but i'm not certain that that is the problem, and for the round tracking the camera solver caused the text to move instead of staying spatially locked.
Otherwise it seems to get all the factors correct, namely scale and rotation, but has a minor couple hiccups. Any ideas?