1. Please load script.
2. Notice there are two propagators (one is SPK and other one is RK-89).
3. Notice that I propagate for exactly 10 days from initial epoch of 01 Jan 2000 12:00:00.000. Both spacecrafts have this same initial epoch. 'Actual_Moon' spacecraft uses 'SPK_Propagator' and 'Spacecraft1' uses regular RK-89 numerical propagator called 'Propagator1'.
4. Run the mission. Go to Propagate1 segment and open Command Summary. Notice that Actual_Moon has final correct UTC epoch of: 11 Jan 2000 12:00:00.000. Now scroll down a bit in command summary and notice that Spacecraft1's final epoch is 11 Jan 2000 12:03:29.198 which is incorrect. The final epoch of Spacecraft1 which uses numerical propagator (RK-89) is incorrect and is NOT matching with Actual_Moon's correct final epoch which uses SPK propagator.
5. Go to Mission tree and open rf reportfile. In Resources tree, SPK_Propagator is set at default fixed-step of 300 seconds (5 minutes). Notice that in the report, Actual_Moon.UTCGregorian & Spacecraft1.UTCGregorian epochs are matching with each other EXCEPT the very last one. Actual_Moon.UTCGregorian which uses SPK_Propagator generates correct final epoch but Spacecraft1.UTCGregorian final epoch is incorrect and doesn't match with Actual_Moon.UTCGregorian. Please see last few lines of reportfile below and notice epoch mis-match in last line of reportfile.