Transaction not yet indexed

iS4mhCC5DzuDBngcsehZEGbWouKUD9h8oVkmiFbD5kkr4YAF6MJCdTh567Z35dzKTZFzEFSFWvNrjFUsJYm9uK2

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