Now you stated the reason - so the time 'delay' is at least 4 hours. That's what I could not verify from your first statement/the screenshot. Let me suggest that you run nsrwatch and verify the workflow status from the command line. If it looks ok here, then the problem is obviously the GUI. in this case I would restart the NMC service. This will have no effect on NW still running in the background. Otherwise, it is hard to point to a specific issue without further information. In this case, I would suggest an update and/or contact DellEMC support.    
Hi, there is a fix to networker never endless running jobs state without use jobkill everytime. thanks in advance   [IMAGE]    
running jobs state