Using WMX Desktop 10.3.1, the Mark Current Step Complete toolbar button is greyed out for every step in the workflow regardless of step settings. Right clicking on steps and clicking Check Step (Mark as Done) behaves as expected for various step settings (can/cannot be skipped).
For the same user, steps can be marked complete using the button in the Web Version of WMX at 10.3.1. User has all permissions and is an administrator. Other users with more restricting permissions experience the same issue with the Desktop toolbar step "Mark Current Step Complete" being unavailable.
How can the toolbar step be configured to be available to the user?