Glyphs overview gets "cropped" by left navigation

One of my font files displays this strange bug where the left side navigation sort of crops my Glyphs overview. Making the navigation smaller doesn’t help. The overview just follows. Anyone know a fix for this?

This happened after downloading the newest version of Glyphs today.

Neither going fullscreen, resizing the window, resizing the glyph overview and restarting the app works.

EDIT: After restarting the app a couple of times, the bug has suddenly fixed itself.