Hi @wroos, while reading through the ODK docs, I noticed this warning that reminded me of the issue we were trying to figure out here:
if you have a calculate widget that adds together two previous responses, you cannot use relevant to skip in the case of missing values. (Missing values will cause an error.)
I took your Bug XLSForms above and after applying their suggestion it seems to work as you intended it — can you confirm if this is the case?
Here are the forms with my changes:
Bug Edit01-fixed.xlsx (10.3 KB)
Bug Edit02-fixed.xlsx (9.9 KB)