I cannot complete my transfer, even though I have exceeded the required Transferable SG amount. Why is this?

If the "Sell SG" process has started but the Ethereum Network is congested, it may take some time for the Sell SG process to be completed.

Check the applicable History record (My Account ⇒ Market Value Sales History or Guaranteed Value Sales History), and if it fails, please complete the "Sell SG" process again.