Approach Control Retford

On approach to Retford the approach control slows you down for a 40mph junction. Two flashing yellows, then one flashing yellow, then a signal showing a junction indicator but no colour light (well until you’re almost on top of it). I just wondered whether this was typical or a bug? I would expect the yellow to be lit, along with the junction indicator?

Here’s a video: https://share.icloud.com/photos/05dSvaFDGwopPfR4vVClv-rWQ

 

Yeah that should be lit. A signal displaying no aspect should be taken as a danger/red signal.