FSCM - Delivery Credit Block

Hi Experts

Sales- Delivery Order is not able to post Goods Issue to Credit Block with the below error" Goods Issue from delivery not possible due to credit Block".

I have ran FSCM Tcode UKM_MALUS_DSP-Display Credit Limit utilization and noticed that still there is enough credit limit to expose. In Simple Terms my credit limit $38 Cr Exp: $30 and Cr.Exp Amount $8. That means to me there is still enough room for credit and not make sense why there should a block to happen.

1. Deleted the Delivery and Sales Order and recreated. - Still remain the same issue.

Any Suggestion how the further remediation can be made to PGI

Thank you

MM,