I was able to “fix” it in a weird way.
First of all let’s say I have a the base site that has the option:
Make event titles clickable UNCHECKED. Nevertheless the titles are made links.
In the SECONDARY website, the one with the issue, Make event titles clickable was CHECKED by default. Once I unchecked, the date issue was fixed but the secondary was not showing the titles of the event as links. So I checked it again, and now it works fine.
I hope that can give an insight about what cause that issue.
Thanks for the fast reply and much appreciation for the plugin that it’s really what I needed.