Steps to reproduce: 1. Download the LibOCon 2025 presentation template: https://nc.xport.hu/s/27bPKpqSPrJdecK 2. Create a new presentation with the template, or open the template for editing 3. View > Master Slides 4. Choose some master Expected result: Placeholder text shown in the language of your LibreOffice UI. Actual result: Placeholder text shown in Hungraian. Not sure where exactly that originated, but the template was created by people in Hungary, so, they had Hungarian chosen in all sorts of places I suppose. And - you can't make it switch to English (or your LO UI language) either!