I don’t know if it’s useful to reopen this topic, but I encountered the same sorting optimization issue in NethSecurity 8.
Should I open a new topic?
Usually it’s better to open a new topic instead of posting in an old one but in this case the bug is already filed, see The sorting of static and dynamic DHCP leases by IP address is wrong · Issue #1368 · NethServer/nethsecurity · GitHub
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