CSS not always working after Highlighter reinstallation

Hi guys!
I made a big mistake: I uninstalled Highlighter GK5 and reinstalled, now the News2 template not always is well formatted.
I've created the site on a quickstar intallation, therefore the Highlighter module was already installed and work, but had the old problem that the link of the article was not matching the article title. I've tired to modify the scrip as explained in other posts, but nothing happened. Therefore I had the brilliant idea to uninstall the module and reinstall it.
Now, the module is properly working (I understood that I had to change some config parameters), but 2/3 of times the style of the template is not preserved (I mean the CSS style)... I think that during the something is not working between the template and the module.
Hope my explanation is enough clear and the solution is simple.
Thank you in advance!
J.

Hello,

Did you tried to disable the module default CSS code under the module settings?

Yes I did. Same story.
Also unpublishing the module, the problem remains....

I have a doubt... I have the last versione of Joomla, 3.5.11
Can be that I have installed the gk5 for joomla 3 but my template is the old developed for j2.5?

@NoNews - if you have downloaded module from Github, then yes - it you can have version from the J!2.5 branch. For template it is also possible, but then probably more things shouldn't work.

So what? I don't know what to do... now.
Disabling the module, the problem remains... therefore maybe it is a general CSS problem...
Do I have to uninstall the template and reinstall it, to see if the problem will solve?

So in this case please reinstall the module, but please make sure that you are using the J!3.x version.