Transaction not yet indexed

21i6RMNCZ6RAMPuDBA3GXkaJn1m6PLDkVGySh5QFir2ZvLRbJHWaXvFTfZ8i29X3tbWSXUr7Bi2MiXPHAfPMF2HP

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