This is strange behavior and I'm not quite sure why this occurs. When a survey is captured and submitted when you go on https://survey123.arcgis.com/surveys to view the survey in the data view it appears that some fields are storing blanks like let's say there was a choice in the survey for State. Then the person using the survey selects Texas as the state. When you view the record online all the fields will have values but the state field for that record is blank (Note: This only happens for a select few items and not all records will be missing a value for State.)
Here's the crazy part when you click on the record online to make it pop up so you see the questions and answers view, the state is listed right there.
Has anyone else seen this behavior?