Double check your procedure. Possibly you forgot to do something. I don't use the Transfer much, since the addition
of TransX, but aren't you supposed to disengage the Hypothetical orbit before you do the actual burn? Then you
should get the actual orbit plot and DeltaV change on the display and if not you can just have the OrbitMFD on the
other display set up on the same REF and TGT to see the progress.
Again, I can't check right now, but hopefully my memory serves.
Cheers,