Windows 10 1709 Restart Message not Appearing

I have upgraded to Bigfix 9.5.8.38. I have a baseline for the Windows 10 1709 in-place upgrade. At the end of the baseline, I have a post action to restart. The problem is that the restart message does not appear. I did not see this problem in Bigfix 9.2.9. Sometimes the restart message does appear, but many times it does not. I have had mixed results with manually restarting. Sometimes the upgrade works and sometimes it does not.