Transaction not yet indexed

MDNUwz1it6Q6cXWrqArhNteEaoSZVDs8ZS7q16sxiaThn6eskQ7JmuDawQkUYTF2EDgyZXXfRNfJYjHi2XxrXhm

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