Transaction not yet indexed

21UnsftLZDEg5kpBWhSSUS4mMfBR8Rvp9HTxvTiBU6PRmmNqzjfR3KiC2JxuBSb8uTsJSVnSGGUd456LfHe9o1rS

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