My Railroad TTS Class 40 automatically goes to F1 engine start up sound when power is applied to the track (mains switched on) or engine is placed on a live track. Power is from Select at firmware 1.6 which is connected to the track using a dcc removable power clip. This is the case on programming track or running track which is a simple loop. It also has an intermittent response to other F functions and usually ends up completely unresponsive even after several successful circuits of my running track. No error codes shown. The only way to get a response is to power off and/or remove loco from the track. TIA