Daily Survey 6 is not crediting again as of 6 AM EST. I took a screenshot of the congrats screen in case someone wants it. Since DS 6 is today's Team Effort survey, I won't be trying it again unless I see people getting credit for it.
Ok this is the second time DS 1 failed to credit. The first time, was several days ago. I had to take it again later in the day to get it to credit. I had no issues with DS 1 until after they came back from being down recently for many days.