When I run the query you supplied earlier, I get exactly the same map as that that you posted, however your find on GC37 Missouri's First - Watts Mill is now unfound. I have confirmed that you have indeed found this cache, on 8 SEP 18.
Looks like there might be some database corruption.
Please go PGC > Support (big orange button) > Self Support and enter GC37 down at the bottom and click the refresh button. That should fix the problem.
Note that when you look at your friend's profile on this map, the smileys show caches that YOU have found, not those found by your friend.