I think there is a bug that's causing Collect Earth to unanswer a survey question for a sample that I've already collected and answered all the questions for. And it's unanswering the first question in the survey, so I know I previously answered that because otherwise I wouldn't have been able to continue on to the second question - which is keeping the answer currently.
Also weird - when I zoom out from re-answering the survey questions, even more samples have been unanswered:(


