Preview bar frozen in vertical writing mode

Hi,

I’m working on a vertical font in Glyphs 3 and experiencing a bug where the preview bar in Edit View is frozen in vertical writing mode.

In Edit View, the preview bar does not follow the currently selected glyph when vertical writing mode is enabled. It stays fixed on the first glyph that was typed, regardless of which glyph I’m currently editing. Horizontal writing mode works fine — the preview updates correctly.

Any help would be greatly appreciated. Thank you.