We are running FME Workbench 2019.1 and FME Server 2019.1.2 on Windows Server 2016 Standard. On the same server, we have ArcGIS Desktop 10.6.1 and ArcGIS Server 10.6.1. The Desktop license is running off a concurrent License Manager on another server. We have the ArcGIS Desktop license set to Advanced on ArcGIS Administrator.

This setup has worked fine until about 4 days ago. Now many of our FME services are failing. The workbenches run fine. An excerpt from the log on one FME service is shown below. I have already exhausted my search for solutions. I am considering trying to install ArcGIS Pro on the server, though I would prefer not to. Any suggestions would be appreciated. Thanks!

145The Esri Product license used by this machine does not include licenses for the 'ArcServer' licensing level146The ArcObjects license 'Advanced' is being selected from the Windows registry147The Esri Product license used by this machine does not include licenses for the 'Advanced' licensing level148The ArcObjects license 'Advanced' is being selected from the Windows registry149The Esri Product license used by this machine does not include licenses for the 'Advanced' licensing level150Unable to perform any licensing related tasks. This 64-bit version of FME requires 64-bit Background Geoprocessing, ArcGIS Pro or ArcGIS Server. Refer to this this article http://fme.ly/qua for more details151A fatal error has occurred. Check the logfile above for details152... Last line repeated 2 times ...1532020-02-19 10:00:03| 1.9| 0.0|ERROR |