Language suggestion in the new web interface. Option disabled and not supported in 15.3.
We have identified this console issue for server settingGlobal > Limits & Settings (Password)Allows users to recover passwords: NoCurrent workaround to make login language option visible is to set above to: YesAlready fixed in code and to be part of next service release.
I'm forcing for example the Spanish language and there are so few strings in spanish.