Dec 02 2019 11:57 PM
Dec 03 2019 09:15 PM
I suggest that you should delete the question (the option appears to be actively available in your screen shot) and then add it back again and see if that fixes the issue? If it's still an issue, try with a slightly different variation of the questions text to see if that stops the issue.
Sometimes easier to delete and add back than to try and fiddle with it.
May 15 2020 02:59 AM
I've create a video to help solving this error. You can access it in https://youtu.be/B2hJP-1yCyI
Although it is in Portuguese, you can add the subtitles. Please check if it solves your problem and send me your feedback.
Also you can check other videos in https://bit.ly/2XQTCkq