Transaction not yet indexed

421rtW1ZhSX1uiEvYuTmGLUt9n2WzSdzFvCVcqkuZWSjXyh4Jm2BS1uEuTSP1EMQiqcCZ9fwqCWYZbHKjFZSxAPZ

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