Surface Duo 2 0.5 Button missing

The same thing happened suddenly on my Surface Duo 2. I've been trying to find anything online that references the problem. Your post is the first. Hope there is a fix.

I see this ONLY when shooting in Portrait mode. Photo mode show all three options. I believe that's the way it's supposed to be.

Thanks for your answer.

The 0.5 button used to be there for both portrait and photo modes. It's completely gone now.

I don't recall it being there for the .5 camera, but I may have missed it. The current Microsoft description for photos (https://www.microsoft.com/en-us/d/surface-duo-2/9408kgxp4xjl?SilentAuth=1&wa=wsignin1.0&activetab=pivot:techspecstab) says "Portrait mode with adjustable depth control. Portrait mode supported for wide and tele camera. Machine learning used for portrait mode." Is this inconsistent with only the two options for Portrait mode?

I looked around for reviews, etc. that discussed this and all that discussed Portrait had the description that Microsoft has. One review on October 21, 2021 (https://mspoweruser.com/microsoft-surface-duo-triple-camera-snapdragon-888/) has the same description for Portrait mode listed as what Microsoft shows.

By the way in Photo mode I'm able to pinch with the .5 camera, and it transitions to the 1. camera when the zoom reaches that point, and then transitions to the next camera again when the zoom reaches 2x, and can be increased to 10x as expected. For Portrait mode there is no pinch.

Thanks for replying.

Sometimes I'm not clear enough. I have no issues with portrait mode, but in photo mose the 0.5x function has disappeared completely. It used to be there. I cannot pinch to less than 1x.