Zend certified PHP/Magento developer

Can’t translate some sentences

I’m trying to translate “The requested qty exceeds the maximum qty allowed in shopping cart”. I already have the translation in the correct translation file:

app/design/frontend/Vendor/Theme/i18n/Language.csv

with:

"The requested qty exceeds the maximum qty allowed in shopping cart","Translation"

The other translations are working (didn’t test all, but the ones i need are working).
The file that sets the message is:

/vendor/magento/module-inventory-sales/Model/IsProductSalableForRequestedQtyCondition/IsCorrectQtyCondition.php

I’ve logged all result to it with only one product in cart and it is accessed 7 times when reloading the page. Not sure it is supposed to.

Also tried to change to another phrase. Like __(‘January’). It displays without being translated. And in the 4 first accesses to the function it logs without translation but the last 3 it translates.

Could there be anything wrong with my setup? I’m not using the default theme. But i’ve run a grep to find that exact phrase only showing in the original file and when changed it changes the output. But never translates.