FWIW... I may have found the cause of my 'pausing' issue. It appears that it was caused by a short of some kind on the extruder stepper motor, on the duet side(?). I repositioned the cables around the stepper motor connectors on the duet side and so far have not experienced this issue.
I also want to add that in addition to the issue being intermittent, it was present whether the rotating sensor was enabled or disabled (so it was not a problem with the sensor or sensor config).