Transaction not yet indexed

MEM4JWmiuE2NTQk3Lewe7e4e8jnJEYp2ESyLNvMXsiPmFV6NNAfvqPgtv2G5cR24pEjfQC8MmakrMJqQGNmUQeP

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