Transaction not yet indexed

NMXgLyxpgwtNhyTVGGSLQQwB21mUJfseR8nmbrZsJ2RaGuDC2tF4RtppQe5V4SZ2u9Di9sZmZaNbJSQoWsBowmm

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