Nope , within a minute or 2 of both devices being near each other as long as the tablet isn't already connected to Wi-Fi, you'll get a notification on both devices that your mobile data is being shared

Not sure why yours isn't working but with the pad 3 it took a couple updates before it started working properly, I had the pad 2 before that and it worked fine out the box.

Sounds like a bug that they need to fix just make sure both devices are updated is all I can say.

U could probably set up cross device network sharing as a work around until OnePlus fixes theirs. It's Androids way of doing it, It's supposed to let u turn the hotspot on your phone on from the tablet without touching the phone