Definitely a framerate conversion problem there. I seriously don’t know why 13 didn’t bring out the ability to have 23.976, or any other subdivided rate.
I’m also working on a 3d tracking project. My work around
Right click on your footage in after effects. Interpret footage as 24fps. Drag it into new comp and retrack.
Export scene, copy and paste your previous text animation and remder.
Import new sequence in after effects and drag into newly tracked comp. change interpretation of the sequence, the comp, and original footage back to the original speed.
I know it’s a pain, but it isn’t that much work once you know about it upfront.