Transaction not yet indexed

Kx121mLaZWSgPsrHsuMYB8V8ZkAZXGmoQo3FYJBeMuYEY6yJhNyHF1VLHDiAS87w6nkckWJmGaWjyZJpkooLkU7

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