TYPO3 Core

When I debugged that cache was empty for colPos=0. The whole $this->contentElementCache was empty. Content uses fluidcontent/flux from fluidtypo3.org

I've set up a page like this:
Two content positions (colpos 0 and 1).
Two languages (english and german).

I now have a CE in language german in colpos 1.
No error here.
Are we 100% sure this is a core problem and not related to flux?

I cannot be 100% sure but if it was my code, I would make a simple check in the code:

if (isset($this->contentElementCache[$lP][$colPos])) {
        foreach ($this->contentElementCache[$lP][$colPos] as $record) {
            $key = array_search($record['t3_origuid'], $defLanguageCount);
            if ($key !== false) {
                unset($defLanguageCount[$key]);
            }
        }
    }

It never hurts to be careful. Customers complain. I could solve this with Xclass for us but the function is long and I will have to overwrite it completely. I prefer that the code is safe in the core.

There is one element, which is not translated as usual but created separately in the non-default language. This is the only difference with pages where the warning does not appear. May be, this will help.

Sorry, why is it closed without reason?

Oh, I see it is a duplicate of #73670. Thanks!