Oracle In-Memory POPULATE_STATUS does not change to completed

I'm experimenting with the Oracle In-memory options for BI purposes, when I'm trying to populate one table to in-memory in the v$im_segments the POPULATE_STATUS does not change to completed, for other tables it does change to completed. In the BYTES_NOT_POPULATED column it shows as 0 for the table with this issue. And there is enough space in in-memory portion.

Did anyone encountered this issue before, any ideas on how to get it right.