Transaction not yet indexed

mRMB18mbEjjfaBC8r3KdFQQMFXdedSkRV71tXiGX3PCknmrdCAt9xdsMW8VL4xsFMHUR1haDXfDPtqEWPXjYWpQ

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