It's possible that GE has updated the firmware in the new bulbs and something has changed.
Can you try and send logs (Help, Send Logs in the LCD UI) after you've tried pairing a bulb?
We know Osram did this with their RGBW bulbs and we have some work to do there to make them work again, but at least in that case, we can still update the bulbs with the Osram hub. In the case of the GE bulbs, I don't know if they can be updated via the Wink hub or not.