Unable to change the charmap and locale after update

So I’ve updated from 42.1 to 42.3 and something is definitely broken in the locales department. Basically the system runs with ASCII 7-bit character map now (so obviously everything else just becomes “?”) and denies all attempts to change it.

nikita@linux-w0r5:~> locale 
LANG=C 
LC_CTYPE="C" 
LC_NUMERIC="C" 
LC_TIME="C" 
LC_COLLATE="C" 
LC_MONETARY="C" 
LC_MESSAGES="C" 
LC_PAPER="C" 
LC_NAME="C" 
LC_ADDRESS="C" 
LC_TELEPHONE="C" 
LC_MEASUREMENT="C" 
LC_IDENTIFICATION="C" 
LC_ALL=
nikita@linux-w0r5:~> locale charmap 
ANSI_X3.4-1968

/ets/sysconfig/ has **en_GB.UTF8 **set for everything, but the OS doesn’t seem to care about that. Trying to set the variables through console (both with “export” and the localectl thing) resulted in effectively zero effect. It appears to change the settings (at least locale and *locale charmap *give what I told them to) but it doesn’t fix anything and once I restart the terminal the ASCII is back. I’ve tried just about everything I managed to find on the Net, nothing seems to work. Any suggestions would be very helpful. AFAIK this isn’t caused by the update specifically on this notebook, since it seems to have the same problem on the other notebook I updated recently. Could it be some sort of an issue with the live USB I used?

Okay, it’s kinda stupid. KDE was set to “Default(C)” for some reason, never seen that in previous versions. Also never thought KDE could overwright YaST.