RMS cannot be started when the Windows user name contains non-ASCII characters.
java.lang.UnsatisfiedLinkError: C:\Users\admin\AppData\Local\Temp\libgdx??-????????\1cecf4f6\lwjgl64.dll: Can't find dependent libraries
JVisualVM shows that JVM is started with these properties by default on a Windows 10 English system:
file.encoding=UTF-8
java.vendor.version=Temurin-21.0.7+6
java.version=21.0.7
native.encoding=Cp1252
stderr.encoding=cp437
stdout.encoding=cp437
sun.java.launcher=SUN_STANDARD
sun.jnu.encoding=Cp1252
I will update this if the UTF-8 system-wide workaround works.