What were your search parameters?
I tried the very basic search - in the first entry field I searched Norrbotten, Sweden (this defaulted to the 30km radius, with no other additional filters), and there are caches visible around the Lulea airport .
I then tried to world map - centered on Norrbotten, Sweden, and all the caches on the map around the airport match with the search results above.
Are you sure the cache is not archived? GC5M7Y4 I presume?
Thought --
I presume you logged it as found yesterday? When you did the search, did you add a filter to only show the caches you haven't found? If so and you didn't change that filter option to "All", the map won't show that cache.
Yes it is GC5M7Y4 that I logged yeasterday.
The only thing I searched on was Norrbotten, Sweden. No other filters in advanced search. I just notised that I got the same result again. The only cache in this area that shows is GC1ZD6C. Several is still missing.