Transaction not yet indexed

Am8iExk4FuXrNW7jMmA2jxL9oapzJsjKf3KtZKR9hko9mbfPeGCenz2Ek16Gnt7XbcyLy5UbCoaDpVV5BV5xcwC

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