Get error messages, no explanation of the reason that parts cannot be saved or updated. This happened in version 2403, see error message in details.
In run.bat file (C:\MentorGraphics\VPL\VPL2311\VLM\run.bat) add the following string
-Duser.language=en -Duser.country=US
like this:
In Standalone.bat (C:\MentorGraphics\VPL\VPL2311\VPLServer\wildfly-27.0.1.Final\bin\standalone.bat) add
"-Duser.language=en" ^
"-Duser.country=US" ^
Like this: