Data missing on submitted forms

Data was submitted using a Kobocollect form, and I can see that 77 forms were submitted. However, all of the forms have blank data except for the date started and finished columns. About 95% of the questions are required, so I am confused about why these are full of blank data.

Welcome to the community, @hopestory! Did you use the Collect Android App to collect your data, or did you use Enketo?

@Kal_Lam, thanks for the welcome! We use the Collect Android App.

@hopestory, could you also check if this project has a repeat group question in it?

@Kal_Lam, there is no repeat group question.

@hopestory, did you add/remove questions later and then redeploy it? If this is the case, then you may see missing data for some variables.