@maniscsf. Excellent. I think I see your problem. If you look at your second screenshot, you will see that you are assigning the category list “Accounting” instead of the article “Accounting”. Modules are assigned to a page/article. However, what you are selecting is a auto-generated category list.
To solve your problem, either change the menu assignment to “on all pages” like I did in mine, or change your menu item to the article “Accounting”.
As an initial test, I would advise you to first change menu assignment to “on all pages” for the module. Don’t worry it won’t show on all pages automatically. It will just show on all pages that have the xpos_4 that you specified. And since you only have xpos_4 in one article, it will only show in one article.
Hope this helps. Let me know the result.