Transaction not yet indexed

1MtU6WD9kxFbXMaVzypMrf1JaQACTgXVzzDjjAK21G83R9Uc8SWj6p4k5y5D42w5EBwdGHsrAg6rHULvx3q4xZR

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