Hi there!
Your note tags are right.
This plugin, and all other plugins, have a sample project where you can test everything. So I used it to see what could be the problem and can confirm that it was not working. On my end, I solved by opening the plugin parameters and configured the position of the images.
The problem is that the default values of the plugin parameters are from another version of the plugin. As the plugin updated, I didn't update the default parameters values. So, you just need to open each plugin parameter position and hit ok, that all of the items/skills that have a Visual Image will be shown on a default position.
Either way, this is not a plug and play plugin. You should open the plugin parameters and setup the positions anyway, rather it have a default parameter or not. Here is an example of what I'm talking about:
Let me know if solved your problem! :)