En->Fr Adjectives 3- skill not visible on mobile app

[Diplospouse]

I am working on Adj 3 on my French tree, but the skill is only visible on my desktop computer, not when I use my android app. On mobile I only see 2 skills on that line (prepos. 2 and places), but when I access Duo with a browser I see all three skills. What's up with this?