Russian language breaks the application

[J0hannex]

Hello, i have trouble with Russian language (Cyrillic). What i using: IDE Visual Studio 2019(tools v142), ISO c++17, DXSDK v10. Imgui v1.84b
After many examples and tips, I decided to create issue.
This problem appears as in demo window (DX9 WIN32 example) as in game with DX9 detours hook.
Step 1 I have uploaded a font with Russian:
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontDefault();
ImFont* font = io.Fonts->AddFontFromFileTTF("../arial.ttf", 15.0f, NULL, io.Fonts->GetGlyphRangesCyrillic());
IM_ASSERT(font != NULL);
Step 2 Then i create textbox with russian chars:
ImGui::Begin("Demo");
ImGui::PushFont(font);
ImGui::Text(u8"Русский");
ImGui::PopFont();
After starting the demo project, the window where the graphical shell with the imgui menu should be created simply freezes and does not respond. I just see a white empty window.
If i change code form Step 1 with one below nothing is changes:
ImFontConfig font_config; font_config.OversampleH = 1; font_config.OversampleV = 1; font_config.PixelSnapH = 1;
static const ImWchar ranges[] = { 0x0020, 0x00FF, 0x0400, 0x044F, 0, };
ImFont* font = io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\Tahoma.ttf", 14.0f, &font_config, ranges);
In project options uses multibyte characters set, switching to unicode has no effect.