Transaction not yet indexed

mRm3ktqRWgf6spiDJiAygpg3QzoTa2kc8PNeZWsQykpPwP2CqQepANTUZ2ssGRQc4jEfpQ5t6rx1LgXZBUQP8SV

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