First of all thanks for choosing Bizlight Pro.
Regarding issue changing in banners, Yes there was a error in our theme. Now we solved it.
New version ( 2.0.4) of the Bizlight Pro theme is now available. Please confirm that you have got the update notification in your dashboard.
Sorry for late reply.
If you have any issue, you can post in this url http://themepalace.com/support-forum/
eVision Themes Team