Does anyone have trouble for Cortana to work after the newest update for WP 8.1?

[Joshua Liu]

Hi guys

So recently I updated my Windows Phone to the latest developer preview, but I ran into some trouble. My Phone's Cortana would stop working after a few days. Noted that I recently also joined the Xbox Music for a 30 day trial, so I listen to music quite a bit, especially after working hours. Can anyone on this forum help me out? thanks a lot!