I have an MTH 30-20315-1 Railking Evolution Hybrid loco. This engine is about a month old, I preordered it and picked it up in late July.
This evening, I was cleaning up in the basement and decided to let it run around the layout a few times. I noticed, at very low (crawl) throttle settings, the charging lights seem "confused". Instead of going in one inward (toward the center of the loco) and outward (toward ends), they seem to flip/flop and flicker. Is it supposed to do this? I attempted an iPhone video to show this, particularly in the beginning of the video. Otherwise, it runs great. Hope I don't have an issue as I purposely ordered this engine because I thought the lights were cool!
I should note that once I speed the engine up, the lights appear to "stabilize", although admittedly it is difficult to track when going faster around the layout.