Hi, I have created a couple of K2 content modules to pull some articles from certain categories.
SEF URLs are enabled. The issue is that at some point, for no apparent reason the URLs for the articles shown in the modules, lost the /component/k2/ bit and so ALL homepage only modules load in the destination page as well.
How did this happen and how can it be fixed?

I have noticed that problem disappears when I clear the cache and it reappears after a short while.

I have disabled SEF URLs and keep cache enabled. Nevertheless, every now and then -which is strange- the string "&Itemid=155" is attached in the end of the URL links of the K2 content module items.
This results in all homepage modules showing up in the clicked K2 item's page.

This is urgent, please! Is this a K2 content module bug or what?

I have enabled K2 Advanced SEF settings in K2 parameters -> Advanced and that seems to fix the issue.