Transaction not yet indexed

Mk56bXAf3ZGEXNXqTyomWMipyjVzBJdExHuAAG5MY6HcVF8a4RRXyf2N2jTTdJUqZXSvhv1dgieXiYRFVKo1brD

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