Hi, everyone,
I just upgraded from 3.35 to 4.01. Everything went well except that I can't create any new index template!
When I try to create new index templates it always shows this error:

But there is no other template with the same name in the template list. When I come back I see the new template is created but when I try to rebuild index templates it freezes without any error. After deleting the newly created template everything come back to normal.

Any help is appreciated.

I encountered the same problem. Does anyone know a solution?

I am also seeing this issue -- the upgrade process seems to have left both new and old system templates in place. Has anyone found a solution?

Ramon