As usual this twilio thingy is always painful, sometimes it works sometime it doesn't.
My app is on test flight, I've unchecked "Use this credential for sending to a sandbox APN".
In past it did work now it doesn't work.
My question is do I need to enter Certificate and Private Key again when switching from sandbox to Live mode or just unchecking "Use this credential for sending to a sandbox APN" will be sufficient.
I've done some searching but as usual no one knows exact answer. At some place they say to renter cert and key and at some place it's said just uncheck the tick box.
What's correct way to fix this annoying issue?