Not sure quite where to put this so no doubt someone will move it if here is not correct!

 

 

 

All of a sudden, YT is showing me videos that have English writing in the search descriptions but turn out to be in a variety of languages I cannot speak (so far, Hindi, Japanese and German!).

 

The Google search preferences are set to English.

 

The only alteration is installing Sierra on my Mac but not sure why that would have an effect.

 

Any ideas how to stop this?