This is a known problem. You should ping your account team for more information on upcoming development. Your account team can also advise you on what zones yo

This is a known problem. You should ping your account team for more information on upcoming development. Your account team can also advise you on what zones you should deploy preemptives in. Googlers internally can see current preemptive capacity and preemption rates on a per zone level. In certain zones you're more likely to have preemption due to large customer demand.