Hi again ;-)
That one user, balpirol, has uploaded sever images incorrectly. Like this one https://www.modulargrid.net/d/club-of-the-knobs-cp1c
Anyways, unfortunately ModularGrid doesn't support CP sized modules in the way that 1U modules are supported for Eurorack (hint hint? ;-) so there needs to be a blank section photoshopped in to take up the extra height so that it works correctly in a 5U row. Some people have used white blank space but I prefer black or "module color" dark grey.
I've made up several CP module images for MG and I started out by taking the image of one that already works in MG and then pasting the new module image over the top. Here's one of mine for reference, https://www.modulargrid.net/d/moon-modular-551cp