Aws Sunflower Broken In Multiple Locos At Night?

Has something broken the AWS sunflower in UK loco cabs at night?

- Class 220 voyager AWS sunflower does not light-up at night when approaching yellow or red signals.

- Skyhook Class 66 (cargo line Aggregates DLC pack) AWS is also not working at night when I just ran timetable 6O77 Sinfin Sidings - Grain Oil Terminal 21:31 on WCML South.

- DBS Class 66 (WCML South) also has this bug. Discovered on service 4M37 London Gateway - Trafford Park 22:44

Is this a new TSW core issue, seeing as how multiple locos now have this problem?