I'd appreciate some help getting to grips with an odd behaviour we've found since upgrading a site to 6.10 - the file attachments (using the drupal core upload module) are either not working properly, or not working as we expect...

There are two issues:

1. When creating or editing a node you can only add one file attachment. If you put a second filename into the 'attach new file' box and click 'attach' it overwites the one already in the list. Never more than one file can be displayed in the list. This is not the behaviour exhibited by drupal.org and is not what we expect.

2. Once the content is saved, although the uploaded file is saved in the /sites/default/files/ directory, it is not attached in the content of the page or story.

The uploaded files can be subsequently linked to or embedded in content, but they do not display as attached or uploaded content in the node in which they were created.

This behaviour is new on the site since upgrade to 6.10 - so are we failing to complete some part of the upgrade process, or is there an error?

Thanks for any suggestions or comments people can offer.

Nick