在我的项目中添加Google Play Services库后，我产生了相反的效果（如Seth说的）。也许你从主项目中删除了这个或另一个库（它支持所有这些语言）。

I'm suddenly getting this difference from the previous version when trying to upload a new version of my app to Play:

I use only default string values, most of them hardcoded, as my app only supports one language so far. Anyway, I haven't changed anything related to locales/languages to this last update.

when googling about this, the only reference I fount was this link. I was using an outdated version of facebook sdk, but updating it didn't brought my Localizatons back... alse I don't use Corona SDK...

how will this affect my app's distribution? Is it like fewer people will have access to it? Or users will get some screens in the wrong language?

I had the opposite effect (like Seth said) after adding the "Google Play Services" library to my project. Maybe you removed this or another library (that had supported all of this languages) from your main project.