Issues with strengthening
Today I've been finding problems when I try to strengthen specific modules. When I try to strengthen the 'Piga idiom' or 'Reciprocal verbs' modules, I just get redirected back to the Duolingo home screen. When I try to strengthen the 'Prepositional verbs' module, it remains at 4/5 strength and gives me the same exercises no matter how many times I do the strengthening exercises! Has anyone else had similar problems?