I had some problems filling out the survey because the behavior was non-obvious.
When you are given the chance to rank 5 items for a specific geographical area, there is a drop-down in front of each item with numbers 1 to 5. Those numbers are not “independent”. If you already used the number “1” and then use it again on a different item, the first “1” will disappear. You must assign 1 to 5 uniquely. When you use a given number twice, the earlier item’s ranking is blanked out and you need to go back and re-assign it (with a different number).
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