Transaction not yet indexed

2157kmm9ZkGqhtbmVJfbub1fYYrrdMx5siESi5iXRAUATxZqJVbmDmdfiAwxohua3f9r5SD2DVMX7nRnBRjs1tGM

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