Check the depreciation area. The Depreciation area which does not make any real time posting will always show as TBP (to be posted)
If any area which is not configured in OADB (Posting in GL) and this area is not responsible to do posting GL entries then such posting will not be seen in Posted value Tab under AW01N, because this area are not configured to post in GL. But you will seen there planned value under Planned value tab in AW01N