Line Lock- Quality?

I finally got back to this problem.
I took the old one apart. I didn't see anything obvious.
However, as I was re-installing it, I noticed that I had the "in" line on one of the outlets. (The "out" line was correct.) Duh. Nope. After correcting it, same thing. Oh, the inlet/outlets weren't marked, and I guess I brain farted installing it.
I also tried what I read somewhere, that, some line locks need the button pushed after pushing the brake. No luck there, either.
So I bought another one. It looks the same as the original, but is from another company. (Still Chinese.) https://www.amazon.com/dp/B08BC1F11H/?tag=fabo03-20 After reading all of the replies on here, I figured it's a crapshoot as to what will work. As such, the one I bought is the same design as the first one, so I wouldn't have to re-plumb the lines.
Bottom line: It works. If I were to do it from scratch, I'd probably try a Biondo. I wonder if they're China-made?