Transaction not yet indexed

4Mdk5WGxcaaRguaAgTDD6kqFbxZMXLEbtXs16AKQqUFSkBeMe5dQ18orFa86xohT6zLXtoFSZVayZdSHeCk9nSpz

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