Quiz questions status is not being correctly displayed

In the app, go to Mobile 34 > Quiz testing > Topic 5 > Quiz with inmediate feedback and redo. Click to start the quiz (if you have an unfinished attempt, please finish it first). Open the navigation modal (top right icon) and check that you don't see any status in the questions (white background). Now answer both questions in the first page and click "Check" on both of them. Open the navigation modal again and check that you see those questions in green (correct) or red (incorrect). Now go to next page, type something in the essay question and go to next page. Open the navigation modal again and check that the essay question is marked in gray (answered).