I have a question about the "range advice" section of the snowie app.

I'm playing a HU game. facing an open raise of 3xbb. Under range advice it says "poker snowie recommends a raise size of 2x pot".

So now I apply this strategy ( 3 betting to 2x pot - which seems very large) on subsequent hands, with suggested range. On all those hands snowie app now shows no analysis - says it wouldn't play any hands like this.

am i mis interpretting the 2x pot recommendation in the range advice section?