Steps to reproduce:
Enable game output in launcher settings
Start Minecraft and switch to Russian language (Русский)
Join any singleplayer world and observe
Optional: you can try another commands like /say and game output will show � instead of normal text
Expected result: Game output should say: username зашёл в игру
Actual result: Game output says: username ������������� � ����
Hello, thank you for the report! I'm sorry for the delay in response; however, we're unable to accept this report. When you tested this issue, your game was modified, meaning that we're not able to verify that this issue is also a problem with vanilla Minecraft. If you are able to reproduce the issue without using mods, please create a new report, or add a comment to this one. 🙂