I tried the comments stack both in a 'normal' page and in a TCMS Blog. I was going mad because they were just not displaying. I was using Safari. Then, I happened to use Chrome and both versions work more than fine (Fantastic stack).
I am going to test with Firefox, but to make sure. But with Chrome, Comments is working fine...
TCMS blog : https://newblog.liceovf.org/aprendizaje-cooperativo
Original Blog https://newblog.liceovf.org
Test Comments : https://blogtest.liceovf.org
Special thanks to Scott Williams and Gary Wann who are always solving my silly mistakes...
P.S.: Unfortunately, Comments also fail in Firefox. They are only working in Chrome...