[Beta3] Database imported from V4 has broken category information...

Hello,

I have a database (Campaigns Repository) on our live V4 system. I exported this from the live V4 system and installed it into my V5 Beta3 system. The result is broken/inconsistent category information:

1. Database on V4 is 'clean' (as far as I can determine) - no custom templates, installed in 'col1' on a single column page.
    
2. V4 ACP (on live system) 'download' the database: Campaigns_Repository.xml
    
3. V5 ACP (on test system) 'upload' the database (XML file)
    
4. V5 ACP list of databases correctly shows this database has 20 categories
    
5. V5 ACP select 'Categories' under the database and it correctly shows the categories (no records, of course)
    
6. Create page, single column, suite wrapper, default theme, sidebar, etc...
    
7. Page wizard - drag 'Database' widget to 'col1' and configure for the 'Campaigns Repository'
    
8. Display the page in the front end - click the 'display all Categories results in message 'There are no categories to show'
    
9. ACP: Drag Database Categories widget to sidebar, in the front end the Database Categories widget does NOT display.
    
10. Add new article does not work - it pops up 'select category' but there are no categories in the list and as a category must be selected we cannot get past this point.
     
11. Widget 'Feed from Campaigns Repository' does not work. It either complains that it has not been configured or else does not display at all.

Thanks.

John