Transaction not yet indexed

21CsCEqMCPTRQqCSqhfDu1sSiiPhTGgAq5qQ3iz8P7C2s1jtH6rdQ6mDUBX2wHNp7yG2WT6UcPrgbt9eB3FvVzr2

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