Transaction not yet indexed

21Nb6ca9w29pcjX7TtuRV5HJAzApRpPRNnQCdRseBM8omTh2rMRjJQYbKQuPHYjbQLtETmirc6HA7pb4qw1yhV9D

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