I would like to comment about something I discovered related with the SD70ACE cab signal issue. I created a Scenario with the corresponding tool, for UP SD70ACE but... on Sand Patch Grade! Which I really liked very much and enjoyed. But I noticed something special... On that route the cab signal device, it worked perfectly! I programmed a train ahead, so I had several yellow and red lights, which was displayed correctly on it! Only sometimes where it was no change of the light ahead, it disconnect it. But as soon as a light change ahead happens, it start it again! Note: I will show images of the Scenario on another Thread Please find some pictures: Just some few pictures, but I believe it is enough to show it. As mentioned all the route length shows the right signal indication. So may be the problem it is not the device itself. May be the problem it is something related to the route or the signals of Sherman Hills. Hope this be usefull!