Rob, all my Fastrack was purchased used so I expected there to be some issues but I also paid much less than retail for a large amount of track. As you know this can be an expensive hobby and many like me get entry into O gauge through the used market(I shudder at the thought of my young kids breaking a new $1000 locomotive while playing with the layout so getting $100 locomotives seems like a safer choice). Generally this has saved me a lot of money but also meant I have had to do extra work to get everything to work(so far I’ve only been really burned with a used purchased through Stout Auctions). That also means I’m learning a lot in the process which is nice. This forum and the helpful members have been key to any success I’ve had troubleshooting or repairing items.
I would hope than when purchasing new Fastrack you wouldn’t have these problems out of the box. I think that repeatedly disconnecting and connecting the sections loosens things up over time and that is how these electrical connection problems get created.