Font Spacing Changes on exported font

Hi Guys,
I am experiencing some issues with exported fonts with regards to spacing.
My spacing shows up fine within the Glyphs app but when i work with the font
in Photoshop the spacing is totally different. Please help :frowning:

Please see below screenshots.

Extra Condensed Weight in Glyphs App:

Extra Condensed Weight in Photoshop Spacing and kerning is default:

The only Error i get when i export is this (see below screenshot):
Screenshot 2021-02-17 at 15.49.17

Please help, Thanks :slight_smile:

The optical setting in the character palette overrides the font’s spacing and kerning. Switch it to metric.