It keeps spinning all the time when starting a hotspot

[quandan]

current build number: 385
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.en
last update: 2016-07-25 22:55:09
version version: 385
version ubuntu: 20160723
version device: 20160526-af18709
version custom: 20160701-981-22-11

Steps:
1.Make sure that's the first time to open hotspot section
2.Tap on set up hotspot button to set one
3.In set up page , tap on "Start"

Expectation:
After step 3,hotspot will be activated and the indicator will show hotspot icon

Actual result:
It keeps spinning on "start" and never activated successfully , unless you tap on "cancel" then you can go back to the previous page

Notes:It only happens on Arale