status=full means that a transaction attempted to extend that RBS, but the extent allocation failed: ORA-01562. Until ALL transactions using that RBS are completed (commit or rollback), the status=full will persist. This is a "flag" for other transactions to use some other RBS.

Possible solutions:

1. Kill all processes using that RBS
2. Take that RBS offline, then back online
3. Add a datafile to the RBS - then even the transaction with the error can continue
4. Bounce the database
5. start a new transaction, and use that RBS explicitly:
Set transaction use rollback segment seg_name;