bug of got persistant assignments

Hi,
I'm using projectorria, it globaly work fine and my collegue appreciate it, thanks.
Although we do have a bug concerning assignments.

When I (administrator) delete an assignment of a person on an activity, it normaly disapear af the assignment-resource-list for the activity.
But when the person i just unassigned connect and goes to "real work allocation", projectorria automaticaly reconstruct the deleted assignation.

Is there something i can do?
Cause now, people can see and work-time on activity they don't practice.

Thx,
takk

well, you're right, it works now, Thanks!