Transaction not yet indexed

MEX3qif8XZk7o6ajkZqy9HQnw4MSaAM95Dw8U31MsTpApQZqeP1QZFGb5VBqsgXU6Gd4PH5bopakiBRv1toSmfT

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