ABSO TType 105/160 doesn't reverse the accumulated dep. in area 02

[leong99]

I posted an asset with USD1000 acquisition value with TType100 in FY2022Jan, assuming this asset depreciate 20/month. So in 1stJuly FY2022 when I performed a credit memo USD1000 with TType 105, The system reversing out USD120 accumulated depreciation during dep run from the asset for both area 01 and 02.

Now the issue comes with another similar asset with same 1000USD Acquisition value with TType100 but created in FY2021Jan.

When I perform a credit memo of USD1000 with TType 105/160 in 1stJuly FY2022, The system only reversing out the USD360 from deprecation area 01 during dep run. But area 02 is not being reversed out the USD360.

Both areas are using same dep key, same dep start date, same useful life.

Area 01 is posting to leading ledger with area post in realtime and Area 02 is posting to non-leading ledger Z1 with area post depreciation only settings.

The expected result should be, when posting a credit memo of USD1000, the system should reversing out the accumulated depreciation posted in area01 and area 02 regardless of the asset is created in the same FY or previous FY.

What I've missed that causing this error or this is an expected behavior?

SAP Version ECC6.0 SAP ERP