NGINX Home Assistant SSL proxy issue

Although I have successfully set this up, i.e. I can access HA via non-ssl local IP, I can no longer access HA via my duck dns link, i.e. https://myhabuild.duckdns.org. It either times or simply says its unreachable.

My log shows success…

[s6-init] making user provided files available at /var/run/s6/etc...exited 0.
[s6-init] ensuring user provided files have correct perms...exited 0.
[fix-attrs.d] applying ownership & permissions fixes...
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts...
[cont-init.d] done.
[services.d] starting services
[services.d] done.
[20:07:06] INFO: Running nginx...

I have followed the included documentation and this article…

Home Assistant + Nginx: Unencrypted Local Traffic

My HA is hassio on a virtual PC

Edit: May I add I’m also now getting the Not Secure warnings, dialogs, etc. Any means of stpping this from occurring?