Transaction not yet indexed

55F21C4FzCSX7B5BQgGVa7md2AT4UGts7QjqQJZgSWPSTZ75ucjJGXDBwMPGQmTaNwHzSbpSdpy2L8caJ3SeEiFU

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