"Unable to get property 'forEach' of undefined or null reference" error when viewing TIBCO Spotfire Server logs in Monitoring & Diagnostics administrator web interface

"Unable to get property 'forEach' of undefined or null reference" error when viewing TIBCO Spotfire Server logs in Monitoring & Diagnostics administrator web interface

When attempting to view TIBCO Spotfire Server logs in the Monitoring & Diagnostics administrator web interface (see "Accessing Spotfire Server and node logs" reference for more details), the logs may fail to display and you may receive a "Unable to get property 'forEach' of undefined or null reference" error. In "user-interface.log", you will see entries like:

2018-03-13T13:15:24,814-0500 ; ERROR ; com.spotfire.rs.tools.UI_ERRORS ; dd6d0c1b-dc22-9a44-d977-9f52f5ba519f: Unable to get property 'forEach' of undefined or null reference
Current URL: http://spotfire/spotfire/#/logs?serverId=36764196-649e-400e-a6fb-cb854524a9d6&instanceId=2501a804-70d6-4135-9ebc-e39992007b75
2018-03-13T16:10:25,383-0500 ; ERROR ; com.spotfire.rs.tools.UI_ERRORS ; 8c644d40-bf7a-a6c6-36b6-b551bf9b105e: Unable to get property 'remote' of undefined or null reference
Current URL: http://spotfire/spotfire/#/logs?serverId=36764196-649e-400e-a6fb-cb854524a9d6
2018-03-15T10:59:56,237-0500 ; ERROR ; com.spotfire.rs.tools.UI_ERRORS ; 02ddcf1b-1e36-0d87-2ce9-fb08888055a8: Unable to get property 'remote' of undefined or null reference
Current URL: http://spotfire/spotfire/#/logs?serverId=36764196-649e-400e-a6fb-cb854524a9d6

  To resolve the issue, follow these steps:

1. Stop the TIBCO Spotfire Server service
2. If desired, take a backup of the TIBCO Spotfire Server logs from <Server installation directory>\tss\<version number>\tomcat\logs\
3. Delete all logs from <Server installation directory>\tss\<version number>\tomcat\logs\
4. Start the TIBCO Spotfire Server service

This should resolve the issue with log viewing in the TIBCO Spotfire Server web interface.  Doc: Accessing Spotfire Server and node logs

• https://docs.tibco.com/pub/spotfire_server/7.11.0/doc/html/TIB_sfire_server_tsas_admin_help/GUID-E2B9B2BC-7A4F-4AAC-BB57-45FEAF1B4AD7.html?