Trying to create a Content Page and add a Custom URL. My store is in /mysite/store/. When I add a custom url like

jobpostings.aspx it automatically adds a / in front for /jobpostings.aspx

Then when you save the Content page I get a 'double mapping' of the folder which of course is an error

/store/store

http://www.mysite.com/store/Store/jobpostings.aspx - obviously this path doesn't exist on my store

Then when you try and delete the Custom URL it won't delete. Remove it from the text box, press Save and then reload it and it's back. Presumably this is a failsafe to prevent you from creating lots of links with the custom URL that would be broken if you change it without thinking. Anyway, if you create the custom page and then enter a custom url you are stuck. The only option is delete the entire custom page, start again and go with the standard BV generated URL.

Rick