Publicize – problem with https and scheduled posts

I moved my site from http to https and I have a strange problem with the social media posts.

If I hit the publish button, everything is fine. But if I schedule the post, the social media posting fails.

I use Publicize only for Google Plus.

Example posts:
OK – https://ulloi129.hu/2017/09/08/kiutottuk-a-titanokat/
Bad – https://ulloi129.hu/2017/09/09/ulloi129-goltoto-emlekezteto-74/

The page I need help with: [log in to see the link]