Transaction not yet indexed

528ea616UMmfEYhRu6pEm6Ra4gbdqQwQpdHfG6pUMdnU3GxPzrZKuofsAwvurU4Mj2FPAHMYqBUi9s8eEtuAHFAt

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