Unapplied receipt created with no Gross Amount

Hello Team,

We have following scenario which happened in production environment :-

1. Invoice was entered & posted with amount $ 100/-

2. Credit Memo was entered & posted for amount $ 100/-

3. The above invoice (1) was matched with credit memo (2) & the batch was posted.

4. As the amount of credit memo > than amount of invoice the system created an unapplied receipt with 'RU' document type with Open Amount = ($ 10) but with no 'Gross Amount'.

Note :-

1. We are using standard application (P03B102) for matching invoices to credit memos.

2. Processing option 4. Process for the application P03B102, 4 --> Negative Receipt is 'blank' i.e. Do not allow negative receipts

3. We are in JDE E1 9.1.4