Did a factory reset of my Nexus 5x. When setting up Join again, I noticed the old instance of my 5X was in there. No obvious way to remove it, so silly me decided to rename and leave it blank. Now app on phone/tablet instantly force closes whenever I open it. Can access the chrome extension on my browser but can't rename my now "undefined" Nexus 5x. I sent an email with the error through my phone...but, is there some way to remove/delete devices that I'm missing? otherwise, this is a potentially annoying thing for people who flash a lot of roms.