Why cant I log flossing or brushing my tongue?

Whether Ive done a full two minute long brush or a shorter brush, the app doesnt seem to let me log brushing my tongue or flossing and its always grayed out in the app, so I cant manually add it either. Whats the point in having a section for this in gray if we cant use/log activity when the app clearly has a bug/doesnt ask users if theyve flossed or brushed their tongue after the brush? So weird and annoying.

Hey, I did floss! about Oral-B