Can you pl. confirm that there are no transactions in the state SAVED in FBCJ and not posted to FI . As cash balances make movements once the tranaction is saved and not at the time of its acual postings to FI.
The transaction in Question amount to 1000 so i dont see that 1030 is the one causing the pain .
Check and above point and revert if still you have issues .
Regards ,