Exploris not relieving inventory

We are experiencing problems where we manually receive a part and then sell it. exploris does not relive inventory. If you look in part ledger you will see the receipt, then look in Lisa you will see the sale, But your inventory still thinks you have one. We find this quite regularly. If you add a part with a PINK screen the same thing happens. Frustrating to keep your inventories accurate. Note Exploris does not know why this happens. I have just logged it again maybe this time I will get an answer