UTF-8 UI Text problem

Hello! I’m newbie in unity and i don’t know what causes this problem but i really need to make this work. So, When i added UI text and changed text with UTF-8 symbols (Georgian Text) i receive question marks as on attached picture. How can i solve this problem? I also changed font but it not working.

Please help me if you can. thank you in advance!

Write unicode georgian text somewhere (not in Unity) and then copy it and paste in Unity.

Have you verified that the glyphs exist within the font you are using? On Windows, you can check this with the Character Map applicaiton.