Transaction not yet indexed

ME88d1xLTYn9MdMDFAgEMpFrtwcfVkZrNoDDh8a1uGJTYp1fuKdTZSMdoEh67F1me2XsDedWComnDWWCV4AUhKp

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