Problem Description
How to fix when all the ribbon bar items suddenly disappear and gives an error message saying “ERROR: No Workflow definitions are available”? The error can be seen in the below screengrab.
Solution
When all the ribbon bar items suddenly disappear and gives an error message saying “ERROR: No Workflow definitions are available” then simply go to this location in your C drive: “C:\Users\User_Name\AppData\Local\Bentley\OpenBuildingsDesigner” and rename your “Prefs” folder & restart OBD.
After restarting OBD you can see that all the ribbon bar items are displayed properly without any error.