Problem while creating Material Request using the Production Planning Tool (PPT)

We created a Sales Order (SO-00001) for FG-Item-A for 1 quantity.
We used the Production Planning Tool (PPT) to create the Production Order (PRO-00001) for 1 quantity of FG-Item-A. PRO-00001 was created in ‘Draft’ status.

NOTE: There are NO raw Materials in stock.
NOTE: Capacity Planning is disabled.

Next, we created the Material Requests (MR) for SO-00001, using the PPT.
We chose the option ‘Use Multi-Level BOM’ = Yes.
We selected the Store = Stores-1.

As a result, the system created the Material Requests for all the Sub-Assemblies and the Raw Materials defined in the BOM for FG-Item-A. The MRs for the Sub-Assemblies are of Type = Manufacture and the MRs for the Raw Materials are of Type = Purchase.
All the Material Requests are generated for Stores-1.

We created another Sales Order (SO-00002) for a different Customer for 1 quantity of the same item FG-Item-A.
We used the PPT to create a Production Order (PRO-00002) for 1 quantity of FG-Item-A.
PRO-00005 was created in ‘Draft’ status.

We tried to create the Material Request for SO-00002 using the PPT. We chose the option ‘Use Multi-Level BOM’. We chose Stores = Stores-1.

But the issue is that the system comes up with the message – Nothing to request.

Since we have a New Sales Order (SO-00002), the system should have created another set of Material Requests to support this Sales Order SO-00002; but, no Material Requests were created. All the existing Material Requests are linked to the Sales Order SO-00001, but still the system did not create any new Material Request for SO-00002.

NOTE: We are using ERPNext: v8.8.1 (master); Frappe Framework: v8.7.3 (master)