Hello,
I have added a 'Run Process' element to the menu in my user view. When I click on it it should load the first form in my process, however it doesn't always do this. Sometimes it correctly shows me the form, but other times it just shows me the message 'Process started successfully': 
Any ideas why the behavior isn't consistent? The only thing I can guess at is that in my process the first activity is to call a sub-flow. In that sub-flow the first step is a route, and based on a check a form is shown. Perhaps this is influencing things?