For VARRAYS and LOBs, the CHUNK_SIZE must be equal to the DB_BLOCK_SIZE.
To get the post moving you have to disable posting to this table, correct CHUNK_SIZE and DB_BLOCK_SIZE, reenable posting and resync the table.
Note:Disabling the table from post will cause out of sync and table needs to be resynced.
1. Disable posting: sp_ctrl>set param SP_OPO_DISABLE_OBJECT_NUM <object id > // Object id of the table with issue from source
2. Start post: sp_ctrl> start post
3. Take the necessary action and make sure that CHUNK_SIZE and DB_BLOCK_SIZE are the same.
4. Reenable posting to this table: sp_ctrl>set param SP_OPO_DISABLE_OBJECT_NUM 0
5. Resync the table