Transaction not yet indexed

21ECcmRRSmcGUQ3B1HG2UctCukwpVLHAvVZPzBxPBmoHsEhhjLeVUQwqwakSUjfFo5EZcxznHQ5WNBQPrsswVL78

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