Just found out the feature is completely gone from the extender's configuration page/tether app.

And yes, it is 100% the V2 because I had the V1 and then got the V2 and it has onemesh logo on the box.

I also remember well seeing the mesh feature when I setup the V2 the first day (like 2 months ago) but since yesterday it's nowhere to be seen. 

I will try uploading screenshots later, but in the meantime, can someone explain this weird issue?