i added to my form a repeat group to add data. the repeat group is working well in the browser when i preview web form but when i preview the form on my tablet with kobo collector the repeat group is not there.
Seems like you have a syntax error within your xlsform (survey project). Would you mind looking at the support article on repeat group here or looking over to some examples in the community forum that has been discussed earlier here.
i think if there is a syntax error it will not appear in the online form but the repeat group is working good and i can see it the the online form. but when i open the form in the collector on my tab it disappears.