Transaction not yet indexed

21C5MK7D5M2UWMTjiAoYDmZdAHZ7Eh8S4P2fPSNvF4UjCg4SzAWi77VxSKCXeuQSj9PuMf3WyyNJvBdiZ2bka8pM

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