This is a common problem. Assuming you have a transition from the "Released" state to the "In Work" state, check the transition acitons in that transition, it may be clearing those varible values in a transition action.
Also make sure each state has the proper "Revision" component.
Post back and let us know what your transition actions look like in the transition from "Released" to "In Work".
Hope this helps
Thanks Tim! Looks like there was a step in the settings that automaticly cleared those fields, Admin deleted that step, now it keeps the information when we transition to 'in work'.
This maybe by design since you are creating a new revision and presumably it will get a new completed date and revision number when it the file is transitioned back to Released. Your data card tab shows these variables as Workflow driven so the values are most likely automatically filled in by the workflow transition.
Can you post a screen shot of the version history for the file in question?
Thaks all for your help!