Why does my PPM health report show an error on the BG Service Name?

Document ID : KB000094974
Last Modified Date : 07/05/2018
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Why is my PPM health report showing an error on the BG Service Name after my environment was upgraded?
PPM 15.x and up - (SaaS Only)
The PPM Health Report is matching the Process Engine list to the one currently running.  After an upgrade, the process engines from the previous version will still show in the report, but are not running, thus the report see it as an error.   This is a false positive - as long as there is at least one current process engine running, this is a benign error and can be ignored.