Using external fonts (EUDC.TTE) on Windows containers

I found this comment:

https://stackoverflow.com/questions/58168226/setting-the-language-and-region-settings-in-a-windows-docker-container#comment107064904_60519634

RobG [Over a year ago]

If you run with Hyperv Isolation then the language is fixed as en-US with ANSI System Locale set to UTF-8 (65001). There is no known way to change this behaviour in hyperv

Another comment below that shares an issue in the Moby repository (The base of Docker CE)

brixenDK [Over a year ago]

Adding to what @RobG says: They are aware of the issue but it is a significant change to support it github.com/moby/moby/issues/40535#issuecomment-930650879

At least if I understood your problem, this could be related to that