Montserrat font in Keynote

Something has changed recently in my Keynote where I can no longer use the normal Montserrat font, instead it gives me the alternative version with the rounded style even if the normal version is selected.

I checked in Pages to see if this was an Apple issue with the font, but it works fine there and both options were available.

Any help would be great as this was the go to font I used for presentations in the past.