Am not getting update of window 10 build 15031 on Lumia 730

[Windows Central Question]

i have Lumia 730. as i am insider, i joined as fast ring user in Windows Insider Program. currently i am on OS Build: 10.0.14936.1000. Now i want to update my phone to the latest build 15031. Currently m Fast Ring User. Now, when i go to check for updates, it is not showing any update, Plz help me to get the update... Thank You...