In 19.04 right now the bug appears with Adwaita but not with Yaru. That doesn't mean it's a theme bug though -- it might be a universal bug and something about the Yaru design is hiding it.
In 19.04 right now the bug appears with Adwaita but not with Yaru. That doesn't mean it's a theme bug though -- it might be a universal bug and something about the Yaru design is hiding it.