I just download the example and executed it.
Thank you for reporting this! It is caused by a recent bugfix in version 0.10 which changed how Padding works for some shapes (like Circle).
If you remove the padding for the small circles in the PageIndicator then it will behave as it should.
E.g. change this:
<Circle ux:Generate="Factory" ux:Binding="DotFactory" Width="10" Height="10" Margin="4" Padding="10">
into this:
<Circle ux:Generate="Factory" ux:Binding="DotFactory" Width="10" Height="10" Margin="4">
I will make sure the example is updated. 
Thanks! It works 
@Remi Pedersen
Btw, I have another issue. I wanted to nevigate introduce.ux to auth.ux introduce.ux is for sliding page and auth.ux is for SNS login. I want to show auth.ux when slinding of introduce.ux page is finished. I tried to do as bellow.
Also, I have no idea how to set the color or image of pageindicator background in introduce.ux page. As you can see, this background image is what I set background to next page, auth.ux, not for introduce.ux page.
