I don't understand what you are trying to achieve.. I have installations that currently are not working as is. New installations don't fix that. Hack or no hack, how can I make the Dutch language gets forced to load again, but now as it stands it just displays the English language. Which I don't want. I have a testinstallation where it also doesn't work. I don't care about new installations I care about the current ones.

Look. I have tried everything previously, and the previous "hack" did fix the issue. Now unfortunately Joomla changed the libraries code and now the same hack is not useable again. It results in PHP errors.

I am just asking if you or anyone else know a new line of code which make it work again. The language files are fine, it's just something in the installation itself why K2 doesn't want to load in the language. If you don't know I am better off asking it somewhere else. Because I previously had got the solution here I asked it here.

Ok thanks. I will go to Joomla forums than.

Found the solution:

parseIniFile() in libraries/src/Language/LanguageHelper.php.

In this file is the method defined. So you can use the same hack Krikor did to make it work again.

Regarding italian translation that has the same problem, i confirm that's still related to _QQ_.
I cleaned the traslation file using the english version as model and now it's working fine.
But the one on getk2.org is still corrupted.

I just uploaded my updated file to transifex, but i saw that were already other correct translations in the history, for that file. Transifex seems to use an old version with the QQ problem.
Don't know now if it'll use my version for the translation package.