Transaction not yet indexed

mkRex7JV6wqj8397PwuAm5LQJxpXwb9w69c3EBjkgNTzbDFWBtfk7jbHdJM3EQQC3BndDAuhEa1GyKBSx9JbH64

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