For some reason I am unable to activate wifi calling while using anything but the built-in launcher. I *think* that it works after switching back to the stock launcher, enabling wifi calling, and then reverting to Nova Launcher (my choice of launcher). But I'm also not 100% sure that's the case. Is there a way to tell for sure that I'm using wifi calling? If it's working it's not a huge deal that I had to temporarily switch to stock, but if it's not then it's a problem for me. I really don't like BlinkFeed.