Is this solved ? may be need to check the legancy data transfer date and last closed period which set in the SPRO in below path
Financial Accounting (New) ® Asset Accounting ® Asset Data Transfer ® Parameters for Data Transfer ® Date Specifications ® Specify Transfer Date/Last Closed Fiscal Year
Financial Accounting (New) ® Asset Accounting ® Asset Data Transfer ® Parameters for Data Transfer ® Date Specifications ® Specify Last Period Posted in Prv.System (Transf.During FY)