Predecessor WIP Batch Goods Issue

Dear PP Gurus,

When using WIP batch functionality in a production order, First wip-1 batch is confirmed during the first operation and GR with 10 PCs, During the second operation I want to copy wip-1 into wip-2 with a GR of 5 PCs, However the system is proposing 10 PCs from wip-1 with mvt type 522 and 5 Pcs in WIP-2 with mvt type 521.

Can any one explain how to reach my requirement, I am using SAP S/4 HANA 1909