Sounds like maybe your cab bus is underpowered? You mentioned adding boosters? But there is still only one command station and unless I¡¯m mistaken that is the only source of power unless there are additional ¡°wall wart¡± type power supplies added to the cab bus at various plug in points.?
Also watch out for cab address 63 for AIU¡¯s as have found that to cause erratic updates or no updates to the cab bus clock.?
Mark Z
Mark Ziebell