Transaction not yet indexed

ngnGC8NmLQ88iccaDW6XoDeVxedYyWKjVjU6dWUkGGSGCFsEmKV2LKJhxbxLBXNT8qqx8jjuVxFqY6B3CLNV9Gm

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