Reply to Reloop RMX-80 help

Yesterday I bought this mixer and it's great and all. But I got a question, which some of you may be able to answer, regardless if you have the mixer or not.

I tried using the effect cue button, but it doesn't really serve a purpose. It only works if: channel fader is up and when the effect engage button has been pressed. The result is that I can't preview the effect, it basically just allowe me to hear the effect in my headphone. It wasn't like that with my old rmx-40 iirc

Can this be true?