Transaction not yet indexed

2C521yKYejFoJihcM3CPv2X6Gfee2mRLBgsWGrmcpuLydL3uCVGeN8e1yZHYZM7U2n1K4JCbzbUu9CwqoZsMFu9x

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