Transaction not yet indexed

21Mom55Jx4sRX2qqxX4CyYcAL6gj5RSPqsgsv8g7k2ymBw8YKzaBsewUfsRAQnGFtpe6a4ddeLKB4FdDmseVwg4K

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