Transaction not yet indexed

Aun9JQJwMJphMuRiZfBQ4d7hGAoBrNpo2jSDbEKUs92eBi6xbtC2rDciFgzfGDK4jeSPxynX5DAgSNC2XEp28Sm

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