Transaction not yet indexed

Ng6988vBNyJosW6CE8ZKafPyuEmBM2myt96AnjYM8ASsV4f8rSGSe5qRgvK1rV9peiHEGEwmQHcBh36MPN8XoNM

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