utf-8 problem in language string

 From:  Moi3dFan
11373.1 
I want to make a help window. Initially I was writing the help text in the called window. And everything worked fine.
But now I want to make the translation of the text in this window universal for available languages. To do this, I changed the structure of the help file by embedding the code so that the text is taken from the string file.

<moi:Text textid="SidePanel_v0">

In EN language everything works fine, but with RU encoding there were problems.

In the help file there is <meta charset="utf-8"> but apparently it has nothing to do with it.

I have attached a video:

Help me to solve it, Thanks
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