Wrong language in "devices and drives"

One of our customers had a wrong language setup on his published explorer.exe when opening it. The hole explorer.exe was on English, Except the "Devices and drives". They were on another language.    His environment was deployed via MCS on Citrix 1912 LTSR. The Master Image, the Server and the customers devices were all on English. After checking the Master Image I did following changes to get it working: Under:  Control Panel\All Control Panel Items\Language\Advanced settings set following settings: Under copy settings the yellow marked were set in German instead of English: After copying the settings with the checkboxes everything was now in English: After rolling out the master image again everything was now like expected.