Transaction not yet indexed

55My4JVYQYuUKSpbxGAwKqeswsuEBQYp3q1aFvovUXdZkCEHx27QcTdqQ87kVpDY4hzqHstWThxyPGubTBsqNW5C

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