This grid can be used to find the workflow that an action exists in.  A limitation with log errors is that it will list the actions having the error but never the workflow that it exists in.  This is especially when you have workflow calling workflow.  The view button will load the workflow in a new tab. All need now is the actions in workflow to list ID or ID's if execute actions.
If you are not finding the action then run this if SQL Console.  This can be slow as searches the XML for workflow
 

Select 
    PAAA.Id As ActionNumber,
    PAAA.ActionType As ActionType,
    PAAA.Description As ActionDescription,
    (Select TOP 1 Id From dbo.PlantAnApp_Workflows_Workflows WHERE DiagramXML LIKE '%' + PAAA.DiagramUID + '%') As  WorkFlowId,
    (Select TOP 1 Name From dbo.PlantAnApp_Workflows_Workflows WHERE DiagramXML LIKE '%' + PAAA.DiagramUID + '%') As  WorkFlowName

FROM dbo.PlantAnApp_Actions PAAA

WHERE PAAA.Id = 100  -- Insert action number here