Transaction not yet indexed

5b99CmFEn9VFjGC8srBGp1e739FDGL6efjK6a8Zx5f7F87WNumTGD8pEL4SqmMu6bXbhqkuFaiW9wcEtAMCuS138

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