We had our SP 2013 applications in old server, so we migrated to new server with content DB approach. Now I see the 2013 designer workflows are having problem in executing the actions inside APP Step.I tried below steps to resolve but no luck.
Deactivated and reactivated 'Workflow Can use app permission' feature.Provided the Full control permission to Workflow app over appinv.aspx. Republished the WFs .
But If I create new test workflows inside in the site having App steps. Then it executes fine. Only the existing migrated WFs are having problem.
Please suggest me.