1. Make a regular admin user.
2. Create a screen with "Host issues" element.
3. Add a host that has "Read" or "Read-write" permissions (for now).
4. Go to view the screen and make sure the page has auto refresh (default 30s).
5. In another browser as superadmin, change group permissions to "Deny".
6. Watch what happens to regular admin screen view. After page refresh there is an error:
Undefined offset: 0 [jsrpc.php:90 → CScreenHostTriggers->get() in include\classes\screens\CScreenHostTriggers.php:67]