I've tried googling this up before, but all it does is direct me to reddit pages that, well... can no longer be accessed anymore. My friend, who plays on Switch, cannot use the blinkpads in any of the open world areas. Is this a bug? If so, is there a fix?
I recall you need to bring up the full map (non-transparent one) but I have no experience with Warframe on controller. Could you describe in more detail what happens when your friend tries to warp to a blink pad?
Tap - You won't be able to access the blink pads from this map
Hold - You can access this anywhere as long as you are not inside a cave. (Duviri unlocks through intrinsics but its a fairly low level one) Accessed through a long hold on PC, I'm assuming Switch works the same way.
If you cant get it to work through the map key, they can always find the nearest Blink Pad which also works to warp around the map. They may need someone to wp the nearest one for them though.
Window Scaling on display options need to be set to Native, for some god damn reason, if it’s set to scaled, you can’t choose warp points with a controller.