Transaction not yet indexed

MkL3uxAzv3EhqiiuisyR8Ew6kbm5cdLh574r8GTiiQDsMNs4NKKTJCqnV1V74Eza8f3KRxPs6rDkBEHiithWqH4

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