Transaction not yet indexed

Mu6QqZZf2yLfJGUjyeVutbn8yaUc55Gb26knMMHPBEYoNDxXM4yKTN3YZ2SDfRyUbjUJW8R7Tk6RbKnJHBA52ug

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