I have recently migrated my entire WordPress mulitisite to a new VPS (from a shared space) and I’m now having trouble uploading Featured Images for posts in the wp-admin area.
I noticed that when attempting to upload a new Featured Image (post thumbnail) from the Add New Post page in wp-admin, it appears to upload / update fine from the Post Edit screen, but on the front-end of my site, it shows a broken image icon next to the actual post. So, something is broken in terms of image uploading. WordPress has the correct directory, but it’s unable to correctly upload and apply new images or create new image thumbnails. The other weird thing is, if I upload an image directly from Media > Add New (instead of the Post Edit area) it will upload the image fine and it actually appears in the blogs.dir / files folder. That tells me that the problem is when WordPress has to create image thumbnail(s) from another file (as when uploading a new group avatar).
I have taken these steps already:
1. Verified that all permissions on all folders and files are correct (755 for folders, 644 for files).
2. Tried various variations of permissions (766, 777, etc)
3. Verified that the upload folder in All Sites > Edit > Settings options screen is correct for all three fields:
Upload Path: wp-content/blogs.dir/2/files
Upload URL Path: http://flooringlifemagazine.com/wp-content/blogs.dir/2/files
File Upload URL: http://flooringlifemagazine.com/wp-content/blogs.dir/2/files
Blog Upload Space: (blank)
Is this all correct? Also, my host has verified with me that my plublic_html folder has my owner rights added to it and is set correctly as well as informed me that PHP Safe Mode is OFF. Can anyone think of anything else I might be missing here?
Thanks for any help at all.