Hello, I got an MTH Christmas trolley this year for our Department 56 Christmas display. It's running on a very short half circle layout, about 10' long total. I tested it and played with it all week in a temporary area and it all worked great. Today, I started to put the village together, fixed the tracks down, and when I went to test the train the lights were flickering and I hear some static noise from the trolley, plus while it will run fine at faster speeds, it fails at the slowest speeds. Communication with the train to the app is spotty too (MTH WIU, MTH 100 watt power supply). I've got a power meter inline showing about 14 watts out when it's running (problem exists without the power meter). I'm pretty good electrically, but am not sure where to start to figure out if it's a short, a problem with the supply, or something else. Visually inspecting the track doesn't show a specific break or loose connection, plus I've tacked all the tracks down with #4 screws to keep the track from moving/flexing. No, the screw heads are not in the way :-). It's Lionel fastrack, 0-31, all brand new (everything is about a week old now). Can I use a Fluke meter to measure somehow, or what are the rules for what a break or short in the track might cause (though I doubt a short due to the low wattage out of the wall). The flickering lights/static noise is consistent on every track segment, which leads me to believe it's just a power delivery problem. You can see the left half of the layout, and the end is the track connected to the power. The WIU is the little black antenna in the back left.
Just learning about larger layouts now, and am hoping something didn't get fried, so any help would be appreciated figuring out exactly where I added the failure.