Hi there,

Thanks for reaching out. Just to clarify, are you using Slides like this one?

If I understand correctly, it seems that the device setting isn’t available for Slides. Could you please share some screenshots? I’d like to see what’s happening on your end.

Thanks,
Toku

I’m having this same issue. I viewed a mobile screen with prototype preview but now every screen I view is presented as if I’m viewing it on a mobile phone, even screens that are desktop width/height. 

Hi ​@Heather_Tompkins 

Thanks for flagging this. Could you please share a screen recording or some screenshots so we can better understand what’s happening?

If possible, would you be able to share the file link with access to support-share@figma.com? It won't affect your billing. I hope I can investigate it further.

Thanks!

Toku

I found the fix, it was in prototype settings, which isn’t super discoverable since it only appears when you have nothing selected. It also doesn’t seem to be something you can change from within the prototype viewer, but it affects every flow, regardless of the size of screens in your flow. 

Hi ​@Heather_Tompkins 

Thanks for the info. Oh, you meant the Device Settings in the prototype! Got it. I was thinking you meant the Slides, but I'm glad you figured it out!

Toku