AFBN - RAFABNEW - not opening a new depr area

Dear SAPer colleagues,

One client has activated a new depreciation area 10 (OABC/OAYZ etc..) and run AFBN (RAFABNEW) to open a new depreciation area for the existing asset master.

Now we have encountered an issue because not all but a few assets to have failed to open the new Depreciation area in their master data and subsequenty (transfer) transaction only occured in those depreciation area without new Depre ara 10. AS03 does not even show the depreciation area10.

Now we tried to rerun AFBN but neither processed nor errors shows any assets for the combination of company code and depre area 10.

Would any of you be able to share your expertise as to how it would then be possible to add a new depre area 10 to these errorneous asset master in one way or another?

Thanks in advance

Taro