Transaction not yet indexed

1SXmbCkBrvJFLLEeNturGXBnUCCm9NFmLFexnmD2yZUHBTqNzYFCPAfyheG5YmvHSjR9pvVukqGLyNjFNwzcSR7

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