Transaction not yet indexed

Q21G61rYtejBPf8BDc2ZEpXuks2pyw3A7BgVQT1PSD2cqQAthbxcgPiHSAxvxypFiSCyuVXMk2fZTFvMLTz5iqw

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.