Juniper EX3200 lost all 'vlan' configuration commands?

Wondering if anybody has had this happen before. After a power outage, one of our Juniper EX3200 switches lost all vlan configuration commands. On the switch, it still has most of the config, but any configuration that references vlans is marked as invalid and the entire vlan {} tree is missing from the config. I cannot 'show ethernet switching-table' or 'show vlans' as it states those commands are not available.

This switch is just on a test/lab rack and the switch has already been swapped, but I've never seen this behavior before. Has anybody else seen something like this? It is on old code (9.2.x), so I was thinking first step would be upgrading.