why ABAA-641 post in field:Unplanned depreciation and planned Ordinary depreciation ?

For one asset I want transfer the value to the new asset.So I process the below 2 step:

1,ABGL-101 transfer the asset value(APC value)

a.before abgl-101,the depreciation like below picture:

b.After ABGL-101,the asset changed like below picture:

2.ABAA-641 after I process the t-code,why the planned Ordinary depreciation changed the amount to 15116.87?

and anthor asset user ask for me:planned Ordinary depreciation amount is null,and the period is disappeared,why the process 2:in period 6 planned Ordinary depreciation amount is the same with period 5 unplanned depreciation ?

is it because settings about unplanned depreciation in spro or should do some process so that period 4 is disappeared?why period 4 disappeared?