Transaction not yet indexed

621bLbdfMZmRjSBLsc1sQ9k1mUNkABY83MwaUdxQFEnxEWDYamcFA1881Cu7deiFCmqxmwc8NkCv2fH9Mf2R4FED

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