3596660 - Red or Yellow Dots Appearing on Signavio Process Governance

I'm modelling a process in Process Governance, red and yellow dots are appearing above the elements.

Process Governance performs automatic BPMN check on processes. When there are workflow errors or warnings, red or orange dots will appear above the task elements. By hovering your pointer over these symbols, you can view brief descriptions of the identified errors or warnings. Click on this link for reference: Automatic BPMN Check    

SAP Signavio Process Governance, workflow, red dot, approval process, Automatic BPMN Check     , KBA , BPI-SIG-PG-EDT , Process Governance Editor , Problem