data corruption when adding a new secandary leger to an existing primary ledger

Hello,

I already reaised a SR SEV1, but i am also taking a chance here, perhaps someone get the same error as me:

Now i am creating a new secandary ledger an dadding it to an existing primary ledger in PROD Instance. but i get an error that i am not getting it when i did the test instnaces:

1. First all records of the secandary ledger displaying twice.
2. I was selecting conversion methode Subledger but it appear Balance by error.

Any clues?