I think you're right, Terry. The glare starts at dusk as a circle of small circular lights, as in the attached screen grab. The time shown in the lower right corner is my local time, so the time in Holmfirth is five hours later. About three minutes after this screen grab, it was dark enough for the lights to have consolidated into a single bright light.
This is a fairly new problem. I don't think it began with the new format. Do you suppose they changed the camera lens after the wider angle and more frequent updates had begun?