Make sure to give the Jaguars's some room between each other. Unlike Victors, that have open components to let air escape, the Jaguars have vents in the plastic for the heat to escape from.
The
manual recommends 1/2" of clearance. It also shows fault conditions.
Since you haven't answered how you know it's overheating, and since I'm still weary of a Jaguar actually overheating in regular use, I would check to make sure the limit switch jumpers are secured in place.
I don't believe this to be an over current or power supply under-voltage since you never mentioned more than one Jaguar doing this, and you hopefully have it attached to an FRC legal breaker.