Just got my Park Royal D.176 Suburban No. 1400TL, looks absolutely lovely but, it derails very easily, haven't had time to examine in detail yet, but when the bogey is turning the coupling is getting caught.
It's a 2nd radius curve. All my others work OK.
Maybe I need longer couplings, but I have a problem on a straight where it also derails, yet I can't see anything wrong
Anybody else having this issue