Not sure if this has been brought up, apologies for being redundant if it has.

When set to autocast Meteor Strike, sometimes the Advent starbase will begin to wobble and spin without casting the ability. I'm not sure exactly what causes this but I think it has something to do with fluctuating numbers of potential targets within range of the ability. I know the autocast has a minimum number of targets and I think ships moving in and out of range of the ability while the ability is in the process of being cast is somehow messing with it. Not sure why this would cause it to spin and rotate though.