Flight Track stopped in mid flight

for N2063P IFR from KLRU to KRBD on 10 JUN 2007 at 15:59 MDT -
the track just stops at 1 hour and 31 minutes in mid flight. Best I can recall, ATC changed my altitude from what I filed at that point in the flight. Any thoughts on why this occurred? Also note that post arrival, the track was not updated.

That is exactly what occured. It happens on many flights where flight plan is changed mid flight. Pilot requests a deviation in altitude but destination stays the same. Diversions to new destination show up as a complete track most of the time. Other than knowing that this occurs, I do not have an answer as to why, maybe FA staff can answer this one.

Yea, looks like the usual problem with ATC accidentally marking the flight as arrived when making a change to the flight plan.