Cannot edit provisioning profile under new Apple web interface

Question

I have to update a Apple Provisioning Profile to add a new UDID, and when I logged into my Apple dev account it looks like Apple have just changed parts of their dev site.

I was able to add the new UDID without any issue, however when I try to update my Provisioning Profile by:

Provisioning Profiles --> Development --> Select Profile --> click "Edit" --> add new device to the profile

The "Generate" button doesn't change from disabled state to clickable state. Even after changing all changeable fields (profile name, included certificates, devices), the "Generate" button still refuses to be enabled.

Below is the screenshot of the issue, you can see that "Generate" is in a disabled state:

What I need to know is how to update Provisioning Profile, is the problem with me editing it wrong, or is it because of some bugs with the new interface.

Edit 1 Looks like it isn't browser specific. The situation is the same on Win7 Chrome and on OSX Safari (older & newer version). However, I did find that a large part of the site doesn't work on Win7 IE9, I click on a number of buttons and nothing happens.

Answer 1

It seems that their new interface doesn't accept any more underscore ("_") character in the provisioning profile name.

When I renamed my provisioning profile name without any underscore in it, the generate button did become available again.