DWT Editable Regions don't appear

[sdfine]

I created a dynamic web template to update my web site. I attached it to my pages (54 pages) successfully. I then made a copy of the .dwt and made some additional changes to it. I created a new page and tried attach the template to the page. However when the "Choose Editable Regions" box appears the regions I set are not listed. I tried the same thing with my original template with the same results. I restarted my computer. I installed office updates. I checked the Knowledgebase and found nothing. I created a new web site with a new template and I still don't get all of my editable regions listed when I try to attach it. It only lists the first region. If I Manage Editable Regions in the .dwt the regions are listed. I don't understand why it was working and now it's not. I would appreciate any help you can provide to correct this problem.