Transaction not yet indexed

mthXTXUNzLXcE4u3oP2sDX6WS66vuVC2iHvrMpqmxwnXMqqUXM1scW6XxPjrXqjyD1Ka7oegM2wBCJxJGAcbWxZ

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