GST Account Error in v15 for Inter-Company Subcontracting

We are trying to create a purchase order from an inter-company transaction, and from that, we’re attempting to make a subcontracting order. However, we are unable to save the document and are receiving an error: “Invalid GST Account” due to the same GSTN number. This process worked in the previous version, but we are unable to complete it in the recently updated v15. Can anyone help with resolving this issue?

If you want to create same gstin transaction, then you can empty the taxes and charges table and save the transaction.