Browsing to the Enrolment page for a curriculum or course in the administration interface causes is slow; if the curriculum or course is targeted to a thousands of users a server error may be displayed. While loading this page (and after the error page is displayed) the system often remains under heavy load for several minutes making other pages in the site also load slowly.
There is no available workaround for this issue. This issue will be resolved in a future update to the system. If you are experiencing this issue we suggest you avoid this feature until this issue is resolved.
This issue impacts both V3.5 and V4 instances.