I'm trying to make a circular array of objects around an empty, as most tutorials suggest however whenever I do this I get a load of weird random sized objects appearing.
It looks like the dimensions of the initial object changes to random large numbers and when I try to change them manually they just increase to even bigger numbers.
I thought this might be a bug in v2.78 so I uninstalled and got v2.79b but it still does the same thing. Here is a before and after selecting the empty as the object offset.