Transaction not yet indexed

MefLZNJdXjtnsGC1LJpv3zTjS4TkQLXHfLsU6NVQyAoxmjYrfUiywnmh6AwbPo3FLksNK5oVMbsDuWehu5K8nzM

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