duplicate url aliases

Im having similar issues. It also appears to be working sometimes, and then make duplicate urls on other occasions.

We are noticing this problem as well on occassion. We're running pathauto 6.x-1.1 and path 6.13. Has anyone found a solution to this?

I figured out what was causing the problem for us - it had to do with paths and the Locale core module. "Locale" had been enabled, but wasn't really necessary.

We went and looked at the duplicate URL aliases (Site Building -> URL Aliases) and noticed that the original node had language = '' while the new node that had the same alias had language = 'en'. We disabled the Locale module and the problem no longer occurs when you create a new node.

For nodes that already existed with duplicate aliases, we went in and manually changed them.

...noticed that the original node had language = '' while the new node that had the same alias had language = 'en'. We disabled the Locale module and the problem no longer occurs when you create a new node.

Thanks for posting this. Say disabling the locale modules isn't an option ( I have multilingual sites running ) .. I just have to make sure all my content is set to a language. I had hacked/solved this by prefixing the nid in each url.

Is there a way to force language selection... ie.. not allow nodes to be language = '' when the node is being created or edited?

I have the same problem when I create a node with the same title as a taxonomy term, I got a duplicate at the end.
Example:
Taxonomy term name: "Notre offre", path generated: "notre-offre"
Node title: "Notre offre", path generated: "notre-offre"
What I get in aliases table is:

The is no i18n on site, the only enabled language is French, node is language independent. This is really problematic, because it happens all the time. Prefixing path aliases is not an option for us.

EDIT: PS: Got this error with 6.x-1.1 version.