Bug: Unable to transfer KSM from Basilisk to Kusama / SubWallet

Hello,

I have 9.3148 KSM visible in Basilisk UI under my account.

Account: bXjQL6ZfT9fpFaVvt1mZLRid8ghm4M93qbHzuHV84wbBnRAJq

Problem:

KSM is visible only in Basilisk UI.
KSM is not visible in SubWallet or Karura.
"Transfer" only allows transfers to another Basilisk (bX...) address.
Cross-chain transfer is not available.
I cannot move KSM back to the Kusama relay chain or to my SubWallet account.

Could you please advise how to recover or transfer these KSM?

Thank you.

The report does not identify a source file, test, or code entry point. Start by tracing the transfer flow for KSM between Basilisk and Kusama, then reproduce the account's visibility and transfer restrictions; done means identifying a verified recovery or transfer path and covering the behavior with an appropriate test.

Written by the indexing model from the issue text.