Transaction not yet indexed

AMw2AbRrtETGGhkYeFDQLD7tthrnrDebe7ceSVxGTacL9K4rU6uSeZAtZnWgkktNF2U8ZRNkWQ2cE9YmJnD2oB6

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