About Wait Actions and Create Integration Event Actions
R21 Help has this info:
About Wait Actions and Create Integration Event Actions
If you want to use a Create Integration Event action to create an integration event that captures the changes made to a record by the event that triggers a workflow rule, then you must place the Create Integration Event action before any Wait action in the sequence of actions on the workflow rule. If a Wait action precedes a Create Integration Event action on a workflow rule, then the Wait action prevents the Create Integration Event action from detecting changes to the record. When the waiting period on the Wait action ends, the record is read again before the remaining