Minimserver unable to deal with accented characters

[mikej]

Thanks Simon, I guess I have missed something in the configuration then.
I'm using an RPI4.
Log file says:
OpenJDK Runtime Environment (build 11.0.12+7-post-Raspbian-2deb10u1)
OpenJDK Server VM (build 11.0.12+7-post-Raspbian-2deb10u1, mixed mode)
Platform default charset is UTF-8
System platform is linux-armhf
Using platform default language English (en-US)