Announcements not turning off on specific Alexa devices

Hi, we have 5 Alexa devices in the house. I want to switch all announcements off 2 devices. I have been into the Alexa app, chosen Devices, Camera, chosen the camera, opened 'Announcement Devices', highlighted those I do not want to receive the announcements by removing the tick...............and yet they still receive the announcements. Rapidly pulling hair out. Please help as otherwise device is useless and waking kids up when we leave early in morning.