Hi,
my config : JoomSEF 3.9.2 on Joomla 1.5.17 under PHP 5.3.
When I try to remove a custom redirect by checkink relative ckeckbox in custom redirect table relative line in "Custom SEF URLs" tab in JoomSEF URLs Manager and when I choose to "top right area" comboboxes "only selected", "remove" and click to "Proceed" button, I have this popup "Are you sure you want to completely delete selected URLs? The associated aliases, meta tags and internal links will also be deleted.".
When I click on "OK" button, I have message : "URL(s) Deleted" but relative custom redirect is still present in table and of course still active.
In JoomSEF configuration, I have "Disable creation of new SEF URLs?" to Yes, does this setting impact redirect remove too ?
Regards.

Hi,
No, that setting doesn't affect removing of redirects.
Make sure that the URL you are trying to delete is not set as Locked.