Transaction not yet indexed

28f84kMnHVfLDnUdFbfHj6DoUujW3aGqhJCVEHhbBSntPQeXtoGh4LZVbU6QzeyBKWxDTTmRdR2g3pK9DBzRW89G

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