Transaction not yet indexed

MeC8efcE7c6UeRpzvxMGT9fihXMejR2K4FdJTGcK43YcSipmCRrNTNNg7GtgLjwwpLhTu3EnquiUdJ9zwtipMo8

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