When you build Primary, Extended, or course-level customizations, the DesignPLUS sidebar will sometimes hard cache those customizations. Clearing your browser cache by doing a hard refresh will fix the issue.
If you aren't seeing your changes in the DesignPLUS sidebar, we recommend clearing your cache and cookies. You can use the keyboard shortcut Cmd/Ctrl + Shift + R to do this quickly.
For further troubleshooting, you can also check out the knowledge base article "Why are faculty and staff not seeing the templates / themes / other elements created in our Customizations course?"
If you are still experiencing trouble with seeing customizations, please contact our support team by emailing us at support@cidilabs.com.