On the 5Z77 CLass 37 service, Midland Main Line, with DPD and AWS active. 1. No sound warning is being given when the yellow DPD warning shows in the HUD. This is happening with all safety systems properly activated. The keyboard will not react to my acknowledging the warning. Even though the acknowledgement is given in time, pressiing the Q button on the keyboard, the brakes go on automatically. I have to deactivate then reactivate AWS/ DPD to be able to get this warning cancelled (Shift/ Enter & CTRL/ Enter) whilst the train is still moving to get the warning cancelled. Otherwise the train comes to a standstill. I have had this problem on other MML services. Are any others experiencing this strange problem with active warning systems on the MML when driving the Class 37? Is this a known bug?
