Transaction not yet indexed

Ykmn9ybYYCCHQoLSPVnvBKivZxKje48frmhXJpu4WNLVSR4YiMwphZHWFTqqHbFw7DUNbaWmqfxCgB5nCQf5Mom

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