Bug: Statistics > Map Hidden Date ignores filter?

Question

When I look at the Seagnoid's profile find stats it show he am missing eleven hidden dates for cache type=unknown.

However when looking at Statistics > Map > Hidden Date (https://project-gc.com/Tools/MapHiddenDate?pre_pr_profileName=the+Seagnoid&post_crc_country=New+Zealand&post_ts_type%5B%5D=Unknown+Cache&submit=Filter)

it shows no hidden dates. I suspect the query is accidentally ignoring filters.

Answer 1

The issue is that you need to add the cache type to both the pre-filter and the post-filter to get the result you are looking for. The link shows you unknown caches that will fill the hidden date of a calendar with all cache types, and since there are no such holes the result will be zero caches.