3257985 - After SAP S/4HANA Migration (mid-year): Unexpected Postings in Depreciation Run

Migration into S/4HANA was done during the fiscal year, i.e. period 6. During the first depreciation run end of the period 6 the system is posting depreciation not just for period 6 as expected (seen in AW01N in 'Posted values' tab as "Planned"), but also for some previous periods that were already migrated (seen in AW01N in 'Posted values' tab as "Migration") and then reverses them in a credit line item. The total amount for depreciation value for the given fiscal year is correct: but why are these extra postings seen in the Depreciation posting document?

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