There is a search for the vlan info for the DC at line 244 in systems handler that then determines the rest of the network info. This causes it to break with the following error:
DOMAIN ERROR CAUGHT
TypeError: Cannot read property 'networks' of null
at /home/hypersprite/Documents/code/dcit/handlers/system.js:244:81
This would be fixed by moving the System view to $aggregation, it would probably also be faster. It is a lot of work though.