Picked up a new Proto 3 GS-4 with smoking whistle today. It ran just fine out of the box. However I took it off the tracks, once I placed it on the tracks again it started making this buzzing sound (coming from the locomotive chassis, not the smoke unit as it is much louder than the fan.)
Upon restarting my dcc system the locomotive now no longer responds to the F3 command after starting. It only buzzes now.
Anyone have any fixes for this? Im not exactly looking forward to waiting for MTH service to reopen (to my knowledge they’re currently closed due to corona)