I've just installed seasons and the game is throwing a wobbly over neighbourhoods where suburbs have been deleted in the past.  I have one hood with a suburb B002 only and another with B003 only. They worked fine in OFB.  When I click on either of these hoods now I get a flashing neighbourhood screen and a message saying suburbs are being created. It then hangs for a long time and the flashing doesn't stop.  I can't get from there to the 'hood screen though I can eventually get into the suburb via the icon on the top LHS.  Has anyone else hit a problem like this?  When I quit and go look at the files,  I now have suburb files for the missing numbers.  I think it's to do with the extra suburb that Seasons seems to create.
That extra suburb file is going to be a problem for making another sub-hood of anykind.  First indications are that you can't just delete that file and convert the hood into a default sub-hood by changing the ID number and re-numbering the files like you could before Seasons.  
 
  Help wanted on this one too please.
I'll edit or re-post if I get any more detail when I try again.