Thank you so much Jeremy. AddTable didn’t solve the issue for the affected devices, but I’ve finally found what is causing it.
Their Google Chrome had the “Offer to translate pages that aren’t in a language you read” option on and that was translating the pages into Turkish, as if the pages were in English when in fact they were in Turkish. So, that’s how they got the weird sentences. It wasn’t anything to do with the files or the farm.
Maybe this will be something to add to the documentation… Anyway, thanks again.
Best,
Ecenur