I always do File>Open in Sonar, for midi files, rather than an import of midi.
How are you opening the midi file in Sonar?
I have downloaded midi files from some progressive rock groups, and these midi files have all kinds of meter changes in them, and Sonar always opens them just fine for me.
I will double-check right now, in case Xa does something different than X1 or X2. (It has been a while since I did open a meter-changing midi file in Sonar, although I record midi all the time in odd-meters with no issues).
Anyways, look for another post in a little bit. I just took some pain meds, and I want to let them kick in prior to my trying to sit at the desk for any length of time.
Bob Bone