Transaction not yet indexed

Mkn6ffvkTC55F4AYnHDX7aKCW45hui77zdFHNpXgVFBQuKYpbS72j2tRYuFqJs2H8ZMs42f1ETViB6RAHzBKYK5

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