I downloaded the latest installer for windows and tried to install a local database server with locale Norwegian Bokmål. Looks like this bug is back in version 17? Or maybe it's windows 11 that is causing it? Either way I can't from that link figure out how to install properly with an alias instead: https://wiki.postgresql.org/wiki/Changes_To_Norwegian_Locale
Hi,
We are working on a fix for this issue of locales containing non-ascii characters and prepared a test/snapshot installer.