Since this year (I think), all my sites with OpenGraph tags does not show image when an section or article is sent on whatsapp.
E.g: My shopping website
Its contains these tags:
<meta property="og:type" content="article">
<meta property="og:title" content="LG Monitor Tecnico 24" 24BK550Y-B FHD 360º 75Hz HDMI DPort DVI V">
<meta property="og:image" content="https://shiftdigital.com.ar/images/LG Monitor LED 24 24BK550Y-B 1.jpg">
<meta property="og:url" content="https://shiftdigital.com.ar/productos/2229/lg+monitor+tecnico+24%22+24bk550yb+fhd+360%c2%ba+75hz+hdmi+dport+dvi+v">
Using Facebook Debugger I don't see any error and the image is visible.
I read many answer here and in other forums about image size but even using image urls that works in other pages, it 'til not working in mine.