Telem Stalls with latest beta

I uploaded the latest beta MP SW,1.3.1.2 and now when I do a pre-flight cal, the telem freezes. You can still see the power light on both ground and air but no red flickering light. The only way to get telem working again is unplug and repower the Pixhawk.
Could it be something else?

I assume this is fixed now?