IBM BPM "Next Service Item is Not Defined" Error and Resolution

This error happens when you use a "stay on page event" (sope) after a 

nested service. 

"A 'Next Service Item Not Defined' error occurs after migrating
process instances with Stay on Page Event (SOPE) for IBM
Business Process Manager (BPM)'"

There is an IBM fix for this error: bpm.8600.cf2017.12.delta.repository

-Stay on page is a transient concept that implies processing
must be done before saving or persisting can occur.

-Do not use Stay on page after a nested service call.

Note: Specifying a stay on page after a postpone event does not
adhere to the purpose and design of the postpone event.
Therefore, this is not a supported scenario.