yes, but they're still the best.
I have an 072 Wye that my engines kept derailing on the left hand side, perfect on the right hand side. Found a piece of the track was not in gauge. Fixed in easily.
Have another 072 switch that arrived without inner guard rails, Steve sent me rails and spikes in the mail, another easy fix.
Out of 2 dozen or so RCS switches, that's the only issues I've ever had. IMO those issues were minor compared to some of the problems I see on the forum with other brands.
On another note, RCS curved track is great stuff too. Gargraves rail is embedded into the ties and works well, RCS track is folded under and spiked to the ties, also works well.
In the photo above (glad I replaced that boiler!), a RCS switch is to the left and a piece of Gargraves track is to the right. You can see the shiny embedded part of the rail below the top of the ties on the Gargraves track, on the RCS switch you see a black plastic(?) stringer. If ballasted you don't see either one so all told it's not a big whoop, just whatever you prefer.
I've ballasted the outside of the ties, but not in the middle. I'm trying to figure out how to darken those shiny spots so they don't show so much. I've tried a brown paint pen but it's too big to get in there like I want.
RCS switches are well worth the $$$.