"Block Bypass Methods" No longer working

Hey,

I have YouTube access restricted on my home network, and I also enabled the option to block bypass methods because my kids discovered they could use VPNs to get around the restriction. This setup has always worked as expected.

Recently, however, they have been able to access YouTube while connected to a VPN, even though the "Block Bypass Methods" option is still enabled under Parental Controls.

I'm not sure whether VPN technology has changed or if there's another reason why NextDNS is no longer enforcing the restriction in this case.

Any help or insight would be greatly appreciated.