Everything is ok, but it won’t work!
Copy/paste from/to LibreOffice is always broke my cyrillic characters
ArchLinux
Plasma
bleeding edge…
(inline display fixed by ajlittoz)
Edit your question to better explain what we should look at. Your screenshot is a mess: there are many overlapping windows and the dark theme does not help to see the borders. It is also difficult to tell which window is related to which application.
Apparently, the light gray window is LibreOffice but the status bar is missing (to have notification of the current language) and the menu bar too.
Have you clipped many screenshots and glued together the bits into this picture? As is, we can extract no useful information from it.
What have typed? How should it be displayed? Where do you copy from (which application)? Where do you paste into? What is the format of copied data? How do you want it to be pasted (plain text, formatted text, …)? Have you installed a non-standard clipboard manager?
Please do not use Add Answer but edit your original question to enhance the details of your question (answers are reserved for solutions to a problem on this Q&A site).
And what is the locale?
just look at the screenshot
Yep, but to see what?
Copy/paste from/to LibreOffice is always broke my cyrillic characters
If you really expect help, give us more details. Into which applications do you copy/paste text from/to Writer?
You seem to show a text editor window. Is this text editor configured for some ISO-8859-x variant?
Eventually, edit your question to attach the Writer file with “Dasdasd + ifvafivfivfivf” and the text editor file .