Transaction not yet indexed

21n4E5y6b3RvdJpgSxvqfYG6e3NUN3L3RQwaVaXppPLcV31QMKEFm7r3S5S3HLZgcYPXDev2hG1BZHs5oJ3AxjGC

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