[ic] ui_type: Must specify a type

[Gary Norton]

I am getting this error both on 5.0 and 5.1.0-200403300658 versions of IC:

ui_type: Must specify a type 

The following errors occurred:

(ui_type): Must specify a type

It happens when users try to edit their pages within the Admin UI. The
problem occurs when they try to publish the pages.

However, it does not happen every time. It seems that if they make a quick
edit to the page (i.e. less than 30 seconds) they page will usually save
just fine. It seems the longer they take, the more likely the error occurs.

Anybody have any ideas on this, or has anyone else seen this problem?

Thanks,
Gary