Hi Shivraj,
We don't have any previous version of BW. And you are correct. There are other authorization relevant characteristics and those are available in 0BI_ALL (can see via RSECADMIN). Its just that these are not visible in RSECVAL table.
So I believe what we need to do is delete the entries from RSECVAL and RSECBIAU tables where OBJVERS = Blank.
Thanks,
Nitesh Gupta