I have an MTH 20-3148-2 Premier 0-8-0 USRA Steam Engine with 3-volt PS2 and scale wheels that had never been run. I installed a BCR2 and have been running it on my conventional layout with clean Atlas O 3-rail track, O-72 curves and Z-4000 transformer. At voltages up to 13 volts, the engine and sounds operate perfectly. At 14 volts and above, the engine runs properly but the sounds drop out at one location and restart immediately. None of my other locomotives do this. I’ve substituted another BCR2 (no change) and checked the tether and drawbar ground connection. If the whistle is blowing at the problematic track location, the sounds don’t drop out even above 14 volts. At shutdown, the sounds play for more than five seconds. The wheels are painted black, have paint on the treads and no traction tires. The tender has two pickup rollers and the engine has none. Any suggestions to correct the problem? Would more capacitance than the BCR2 be useful?