Transaction not yet indexed

MSmpwQQQ2wXrYkYfmvQv69cXkVK3kW2iAGvdGzdtsamxSubumP3Zap8viLeJHFmF6N58ghixFy36wLUvCCAMrL8

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