diff --git a/mkdocs/docs/known_issues_bugs.md b/mkdocs/docs/known_issues_bugs.md
index 4d5ba87b..7f2ae51b 100644
--- a/mkdocs/docs/known_issues_bugs.md
+++ b/mkdocs/docs/known_issues_bugs.md
@@ -19,23 +19,6 @@
     * ...
 
 
-### Supplemental user groups
-
-#### Supplemental group caching
-
-Due to the high cost of querying supplemental groups it is necessary
-for mergerfs to cache the list. As a result if supplemental groups are
-changed while mergerfs is running the cache may become stale. This
-generally isn't a problem as these groups tend not to be changed
-often. However, the cache has a default expiry of 1 hour and after 12
-hours of no usage the cache entry will be removed altogether.
-
-See [gidcache.expire-timeout and
-gid-cache.remove-timeout](config/options.md) and the [runtime
-interface](runtime_interface.md#commands) for forcing expiry and clearing of
-the cache.
-
-
 #### Host vs Container identity
 
 While not a bug some users have found when using containers that