Trains Speed Out of Control

Is it the active engine, that is, the one you are controlling at the time that speeds up?  That happened to me until I realized that I accidentally hit the 120 mph point on the speed setting.  I meant to hit the “+” and it is so close to the 120, that I hit the latter by accident, or even just holding the device I managed to hit that point.  I’ve learned that anytime I add a locomotive, I set the maximum speed for that loco to about 60mph or so.  That effectively disables anything above that speed so accidents like crazy speeds don’t happen.

This time only one active engine was running and at only 4 mph.  Other times there may have been several engines active and moving but I don't believe it was always the active engine that I was operating on the remote that ran out of control.

This has happened with the old hand held remote and the new wifi and iphone app.  While I don't think it was me hitting the speedometer around 120, your suggestion is good practice and I will set limits on each engine speed.

Also, the 'E' button did nothing on the app with this last occurrence.