Media Stopped Appearing in Social Networks

What did you check within your .htaccess file?

I wish you posted a bit more info on what was wrong in .htaccess. I have problem with pinterest fetching images form my website also, even thou I can clearly see them in the preview and any other social media can get to them with no problems…

I am also having this issue but have made huge security mods to htaccess myself from growing DDos and botnet Brute Attacks

Also have disable hot linking of my images in Cpanel without checking the (Allow direct requests (i.e., entering the URL of an image into a browser)BOX this may be the issue or not I did a major wp-options cleanup last night also.

Why well site got locked down by host CPU state was 126% use lol, not sure if it is a looping DDos since they cant breach my SQL or admin, they pull the links of images and stuff on your site in loop overpowering server.

most of my htaccess

ErrorDocument 416 "Bad Request"
RewriteCond %{HTTP_USER_AGENT} Alexabot/
RewriteCond %{QUERY_STRING} share=
RewriteRule .* - [R=416]

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_METHOD} POST
RewriteCond %{REQUEST_URI} ^(.*)?wp-login\.php(.*)$ [OR]
RewriteCond %{REQUEST_URI} ^(.*)?wp-admin$
</IfModule>

# Stop spam attack logins and comments
<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteCond %{REQUEST_METHOD} POST
	RewriteCond %{REQUEST_URI} .(wp-comments-post|wp-login)\.php*
	RewriteCond %{HTTP_USER_AGENT} ^$
</ifModule>

<IfModule mod_expires.c>
  ExpiresActive on

# Perhaps better to whitelist expires rules? Perhaps.
  ExpiresDefault                          "access plus 1 month"

# cache.appcache needs re-requests in FF 3.6 (thx Remy ~Introducing HTML5)
  ExpiresByType text/cache-manifest       "access plus 0 seconds"

# your document html
  ExpiresByType text/html                 "access plus 0 seconds"

# data
  ExpiresByType text/xml                  "access plus 0 seconds"
  ExpiresByType application/xml           "access plus 0 seconds"
  ExpiresByType application/json          "access plus 0 seconds"

# rss feed
  ExpiresByType application/rss+xml       "access plus 1 hour"

# favicon (cannot be renamed)
  ExpiresByType image/x-icon              "access plus 1 week" 

# media: images, video, audio
  ExpiresByType image/gif                 "access plus 1 month"
  ExpiresByType image/png                 "access plus 1 month"
  ExpiresByType image/jpg                 "access plus 1 month"
  ExpiresByType image/jpeg                "access plus 1 month"
  ExpiresByType video/ogg                 "access plus 1 month"
  ExpiresByType audio/ogg                 "access plus 1 month"
  ExpiresByType video/mp4                 "access plus 1 month"
  ExpiresByType video/webm                "access plus 1 month"

# htc files  (css3pie)
  ExpiresByType text/x-component          "access plus 1 month"

# webfonts
  ExpiresByType font/truetype             "access plus 1 month"
  ExpiresByType font/opentype             "access plus 1 month"
  ExpiresByType application/x-font-woff   "access plus 1 month"
  ExpiresByType image/svg+xml             "access plus 1 month"
  ExpiresByType application/vnd.ms-fontobject "access plus 1 month"

# css and javascript
  ExpiresByType text/css                  "access plus 2 months"
  ExpiresByType application/javascript    "access plus 2 months"
  ExpiresByType text/javascript           "access plus 2 months"

</IfModule>

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

RewriteCond %{HTTP_REFERER} !^http://(.*)?mysite\.com/.*$      [NC]
RewriteCond %{HTTP_REFERER} !^http://(.*)?mysite\.com$      [NC]
RewriteRule .*\.(jpg|jpeg|gif|png|bmp|mp4|mp3|pdf)$ mysite.com [R,NC]

Just got word from my host it was the Alexa bot made my cpu use go up maybe you guys can improve your htaccess a little off some these entries though I will post back if I find that the hotlink protection is blocking the images.