Service 2N08, dep Glasgow. Green signal on departure, then a red directly after. Red signal is GG5524. 'S4' mini theatre is lit on that signal with the red, no white lights lit. Ask permission to pass at danger, approved, but still no white shunt lights. Think this is a signalling bug, as we shouldn't go from a green directly to a red. Tried this service twice and it happened twice. Hope the info is of some use.
Also a couple of other things. Around Cathcart, signal GC 5088 has no AWS ramp. Not sure if this is intentional (as per reality?) Also, shunt signal 5043 at Neilston illuminated all aspects for me (red and white together) when authorised to proceed into the platform - but, it may be a graphics issue on my machine only, unsure. (great audio atmosphere there by the way, with the sounds of the footie match, great work!) Hope this is of use.