Preferences (gear wheel logo) settings are modified from time to time.

I have been encountering the issue of the Preferences setting being modified. I use the BF 6 application in Japanese language mode. This mode of translation seems to be not the same as the original English. 

・ACCESSIBILITY

　 - Chat disabled --> Enabled

・HUD 

  - Mini map size: Small, Medium, or Large.
  Despite changing the size I want, always only a small map is displayed. This might be a known bug.

・GRAPHICS

  - Performance Preset and Quality of Graphics
  It always is changed to the lower performance/quality settings.

It seems someone or something modifies that system dependency.