Locale settings problem!

Support
10

All my effort (and forum members effort) dropped to a water.
Here it is las settings mentioned by @Nachlese and bump :frowning: . I am dissapointed to KDE :frowning:

Screenshot_20210217_041550
Screenshot_20210217_0415501093×945 109 KB
Screenshot_20210217_041718
Screenshot_20210217_0417181090×932 145 KB
Screenshot_20210217_041911
Screenshot_20210217_041911451×548 176 KB

Whatever i choose, always setted as Cyrillic letter :frowning: (i am loosing my hair)