RFXtrx controled devices (kaku) always 1 "behind"

I use RFXtrx to control my kaku (coco) devices. Each command works immediately, but it is always only made visible in Mios af the next command. For example, I turn on light 1, then turn on light 2, then turn off light 1. It would show in Mios as [nothing], light 1 on, light 2 on. When viewing the state in Mios, you’d say light 1 is on, but it isn’t. Of course I’d expect it to show the result of my commands immediately. Anyone got any experience with this?