Drop in Mode and Separate Network

Since 8.0.1:
[Drop-in Mode | IP Passthrough\ IP Passthrough / Drop-in Mode with shared IP can now support another network from LAN

Has anyone gotten this to work? I have been able to get DHCP working on LAN 2 when WAN1/LAN1 is in drop-in mode. However traffic isn’t being routed through the WAN interface. We’ve tried both sharing a static and assigning a new one with the result being the same.

I also would have thought with the separate network and separate static, I would be able to PPTP in. I understand why this would be disabled when sharing a static, but if another is assigned with another network defined, why can’t I VPN in? I can ping the separate static…

Thank you for any help!