Russian name of legend is not displayed on the Scene

[strepkovaas]

Env: OS is Sisyphus-KWorkstation-10.1-x86-64 with KDE Frameworks 5.107.0

Product Version: Mayavi-4.8.1

Steps to reproduce:

1. Launch Mayavi
2. File -> Run python script -> Open boy.py (attached)
3. Colors and Legends -> Show Legend -> uncheck "Use default name" and write the name in Russian language

Expected result:
The name is displayed on the scene

Observed result:
The name is not displayed on the scene

[strepkovaas]

boy.py.docx