I am having a similar issue to this that none of the previous solutions mentioned have solved.
Specifically, I upgraded from 2.1.0 for the reason of solving File Manager issues but they have gotten worse. In 2.1.0, bringing up the File Manager to add a file to a post (using the File field), would have a big lag on drawing thumbnails. Is that because of large files (5mb+) in the folder?
After upgrading to EE v2.1.3 Build: 20101220, the File Manager no longer displays thumbnails of files uploaded via FTP. In other words, for speed’s sake I upload a bunch of jpgs via FTP, go the the CP to create a post and Add File, it brings up the File Manager, eventually shows the thumbnails (no improvement in speed of displaying them over 2.1.0) of everything I’d uploaded prior to upgrading, but none of the jpgs I’ve uploaded since. I’ve run the Server Wizard (good), checked permissions, (thumbs folder needed to be changed but didn’t solve the issue), and verified several other settings mentioned in various threads.
Curiously, one experiment proved partially successful. Within the post, when I click Add File, then use the File Manager to post the jpg and after its uploaded, click Back to Post (or whatever the button on the right says) it works - adds the jpg, shows the thumbnail in the post and displays properly. However, click the Add File again and browsing to that folder does NOT show the file in the window. Weird.
Any ideas what’s going on and how to fix this?
Thanks for your help,
-Peter
Split from older thread by Moderator