I just installed TMCC on a small, 8 x 8, layout. Here's the new-to-me-issue: With the engine in neutral, if I press & hold the wstl/horn button, the horn blows [and the red lite flickers] for about 4 seconds, then stops [ditto red lite] for another 4 -5 seconds, then the cycle repeats. Is this a new issue or is it well-understood?
BTW: No headlite flickers...