Welcome to the community! Would you mind sharing with us your xlsform (you could share us your xlsform in a private message if you feel that your xlsform should be treated confidentially) so that we could also have a look at the skipping patterns within your xlsform. This should better help us understand and check your issue at our end.
Kindly please be informed that the issue you have flagged (in this post here) is not a system bug but it’s a form design error that caused this error at your end. I finally found out the form design error that was causing this error at your end.
Everything in your xlsform was OK except for those that i have highlighted in yellow (with a red text font) is causing the issue. If you remove this from your xlsform it should work smoothly at your end.
Thanks a lot and sorry for my delay in responding. I am still a little confused about this error. If I understand correctly, the problem was with using the calculated field so that I could indicate on each repeat which household member I am asking about. Is it that this is not possible to do at all (in the fixed version I see you took it out entirely)? I also use the same approach later in the survey for asking about each contact and it seems to work fine there. I also find it useful to label the repeats this way so that it is more clear for the respondent who they are being asked about. Any more guidance you can give me on this would be wonderful.