Transaction not yet indexed

MkYfJCNnbDC75A1cA3ifpJQ6Phd5uHYfmBcuMKpYSDdf3AMAquddL3puRLvCxbizECKyinL2zHaJxwpFGDLoD46

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