A bug was found concerning ProSelect versions 4.0 - 4.0.8. If you delete an Order Group, any orders attached to any higher Order Groups than the one deleted will be moved up to the next available Order Group. If there are no more Order Groups then the orders will no longer be accessible until another Order Group is added to the end after which the missing orders will be attached to the last order group.  In these versions it is recommend that you do not delete Order Groups.

This problem has been fixed as of ProSelect v4.1.