Problems with the language option

Put the summary of the bug you're having here

*What I expected to happen was play Minecraft with spanish Minecraft
Describe what you thought should happen here

*What actually happened was that I used the spanish option and is still in english
Describe what happened here I´m from Colombia, I know English but I used the Spanish language, I closed the menu and I found that the game is in english again, I dont know that its just happening to me.

Steps to Reproduce:
1.go to the language menu
2.choose any spanish
3.close the menu and you will see that its in english