That seems odd. And the action is present when your coworker's copy opens the Action dialog box?
I have the same sort of issue!!
In Desktop 8 - I have a grid and I can hover or click in any of cells 2 Action Menu Items show up in the Tooltip.
I then publish to Tableau Server - Login and Run the Workbook and the menus do not show. This is the same for all users. I have all permissions and I have tried it both IE and Chrome.
Please offer some helpful advice.