Transaction not yet indexed

ZSeR8k2ygtYo7VYiNzkhNNvCftdAJucVLW8VKPiADE7jyWvfWnJ8Cwk1gwCcs3r2YmtekAQevtGy8oJi9YLt7Pk

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