Hi - I wonder if anyone has experienced this workflow authentication issue we have.
We are using Active Directroy as out authentication method but are finding that only the default gallery admin's credential are accepted under the "User must specify their own credentials" method of workflow authentication (required for secure share access for the workflows in question).
All other users receive an "invalid username or password" message from the Run Workflow dialogue within the gallery - eg:

Any thoughts on this would be greatly appreciated.