Yeah I'm having some issues with these social preview images - they are finicky. I spin up a headless chrome browser and screenshot the page ... As you can see, the font isn't loading either. It does in some cases and doesn't in others. I hadn't noticed the image problem though.
That social preview / (Twitter card summary) is one issue.
The second issue .... I am requesting to be able to do an SN Post, and for the link use a URL for a .jpg|.jpeg|.png, and that's all I need. SN will render that image when someone views that post.
This is in contrast to me having to do the SN Post as a Discussion post, and then include markdown to get an image displayed.
I see there is already an Issue in Github for this, issue #9
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That social preview / (Twitter card summary) is one issue.
Added that in Github as Issue #99
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