Transaction not yet indexed

ME91cATkaMgkNQZMXEss4fiXBj1zDF986uHcXvBcF5Z78bLcTfPJjy1r3uU6iPmR3tLNV5eP35PyARgmMVLangC

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