I can't find my exact issue, so I'm starting a new thread.
I created two interfaces - one that shows a single survey and its answers in a grid and the user can download the data to Excel. That works fine. Then I made a copy of the interface and instead of filtering on a survey the grid displays ALL surveys and answers. However, when you try to export to Excel, I get the error "Couldn't Download - Network Issue". The number of records is LESS THAN 20 and so it's not a size issue.
This happens in the DEV environment. I haven't tried it in the TEST environment because I'm not ready to push my code yet.
Any thoughts why?
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We need to have a look at your code first. Could it be that this interface has a rule input for filtering and you did not pass any value in your second instance?
I had filters and removed them and no such luck.