Actual work order cost incorrect after update associate parent of EAM.

 Actual work order cost incorrect after update associate parent of EAM.

Step:

1 Update associate of rebuildable(Child) to new parent after update configuration history of old parent.

2 View cost of new parent.

3 View actual work order cost detail of new parent  (check including child assets) see that amount actual cost include with rebuilable.

4 And next step view cost of old parent.

5 View actual work order cost detail of old parent  (check including child assets) see that still had amount actual cost include with rebuilable (same as step 3).

Why work order cost show both new parent and old parent?