Talk with Piko USA, they have no idea what is going on. The tech took my information on the problem and is forward it to the engineers.
If you have a problem call them.
PIKO USA #(619) 280-2800
Mon, Wed, Fri: 10AM - 4PM Pacific
Soundtrax Next 18 decoder #885029 Baldwin and other loco has a 2 engine Whitcomb Sound file loaded on the decoder
Judd Barton