Transaction not yet indexed

UMgUS8LmBi8GYVnmG5mmu7xq74KpSy1YWr3y7xTEYetPweCXs8ybHwXdh2tnH5onWmWwwHPXa7ZM74pfX9KAWq9

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