Greeting, 

there is some issue in new version of DNN (7.3.2) that listed in below:

1- the default skin (Gravity) don't change in skins under admin menu, and a new installed skin from host-> extensions dont apply to portal, but in any page setting i can change the page skin,

2- before change the skins i can change the "Registration form type" under site setting menu to "custom" but after changing the skin, the registration form type return to default value "standard" and i cant change it to custom again, because after press the "Update" button the "registration form type" value return to standard.

any idea?

Regards, 

Mohammad