Questions Hanged in Practice
In learning German for English speakers questions in practice get hanged and do not move forward. The button "Continue" becomes dim. The only way to solve the problem is to refresh the page after which I have to start again from the beginning i.e. a new session starts. It happens frequently. Refreshing again is not a great deal for me but I feel I should let it know.
I use Chrome browser and the best internet connection available in Bangladesh. I have never had any problem related to speed. I used Zendesk with this connection. It could be the server capacity issue of Duolingo due to huge number of users. Thank you for sharing your experience.