Cap height/x-height not set universally

…on an old font I am redoing in Glyphs. This has previously been through Fontographer, then FontLab. I have set the values, but they do not appear to be being applied to every glyph consistent (if at all - it seems to stick with the previous values). Note the difference in A and dieresis. This is causing alignment issues. Thanks!

Screenshot 2021-12-17 at 8.39.36 pm

This was discussed here: Glyphs 3 - Metrics View - #24 by TimAhrens