As the title implies. I have no idea why this happens, it seems completely inconsistent. Ill just be doing my things, and the system im currently going all reaper on, will suddenly stop generating. The population is intact, and all i do is just re-enable the fleet action. This gets annoying when using large stacks to eat a system, as sometimes they will stop eating for no reason. My essence storage is rarely full when this happens. On that point, If there is a mechanic that tells fleets to stop when storage is full, that should go away. The harvest should never stop, unless there is nothing left, or i tell them otherwise.