Soft close on corner cabinets
I am at my wits end with my cabinet company, and I'm hoping that someone in the know here can help keep me from going completely insane. We have an angled corner on both the upper and lower. All our doors have been made soft close by using the extra attachment piece. Lo and behold they get to the corners and realize the attachment piece doesn't work there. They tried to act like there was nothing they could do about it, so I searched on here and it seemed the wisdom was to use a hinge with integrated soft close. I told them this, and they went back to their supplier and came out today with new hinges. Well, they installed them and the door still doesn't soft close, and once again, they are acting like there is nothing they can do, so it is once again left to me to figure out how they should do their job. Alledgely I am the first customer ever to care about soft close on my corner. More like, I am the first customer who didn't give up on them.
I've read here some soft close hinges have on/off, so I looked for something like that and they didn't seem to have it, but maybe I'm missing something. They are using all Salice hinges, but that's all I know about them.
My inclination is to suspect they don't have something installed correctly because of the issues I've had so far, but I have no idea what to even look for.
Any ideas? If they can't get these to work, any suggestions as to the exact hinge I should make them get me? Cabinets are frameless. I tried to get pics, but my camera flash is missing, so they're not the best. If there is something specific on the hinge someone needs to see, let me know and I'll do my best to capture a photo of it.