Transaction not yet indexed

AmnnM8pCoKyYKjoG1P8HCdhUEzdzTGebF4eFvXtXCgntgh7pExdZztXeaN5boiuqVEN3uavvG6YbgfPnDR4hQpw

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