I've been running the AP class 37s on The Wherry Line. Every now and again my locos are brought to a dead stop when the emergency brakes are triggered. I've no idea what triggers them - there's no signal in the vicinity. I'm not speeding and there's no op error. Once triggered and the siren starts I can't turn them off, either by clicking Q on the keyboard or hitting the emergency panel on the HUD (that works with all the other locos I've driven in TS). It's very annoying - apart from anything else it incurs penalty points! I've sent a query about it to AP, but have had no reply. As I haven't found anyone else reporting this I think it must be down to me, but why?