The game uses two different names for the Vex in the Russian localization:
• "Досаждатель" — used in the Spawn Egg name, mob and armor trim.
• "Вредина" — used in Subtitles.
Suggested Fix:
Replace all instances of "Досаждатель" with "Вредина".
Steps to Reproduce:
• Set language to Russian.
• Check the Vex.