'Missing File' Admin Filter Not Working

We are in the process of upgrading a client site to Joomla 6.1 from Joomla 4. EDocman has been updated to 3.5.
The issue we have is the Admin filter in Documents view for listing document Missing Files does not work, which it does on their 3.5 version. Attached screenshot showing missing file tag with non-missing files and the filter selected in the options above.
Anyone else experiencing this issue or know of a fix to resolve it?

FYI we have tried...

• Reinstalling EDocman
• System > Clear Cache
• Delete Expired Cache
• Refreshing the database structure

Any help appreciated

Hi Stuart,
From the image you sent, it is not clear enough for me to identify the issue.
Please submit a support ticket under the EDocman category and provide your site information together with an administrator account, so I can check the problem properly.
Thanks
Dam

Hi Dam,
Support ticket raised ([Edocman]Ticket #149797) and temp access details.
Thanks for your help,
Stuart

Replied through Ticket system
Thanks
Dam