Transaction not yet indexed

Q21GpQmMiP9Yypyj7AKBmRbYQLMDfVWPUfZDFLF2JPyFT1BTfjdmKNqGH5ttuizRwz8zy2MomDo9DDdYG3gzM75

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