Image uploading stuck on “crunching”

I have a problem to upload images to the media library when is used multi-file uploader on WP 3.5.2. Single file media uploader works fine.

I have tested it with 1k PNG image, which was stuck on “crunching” anyway. Debug log for that part came with those messages:

[23-Jul-2013 13:41:28] PHP Notice:  has_cap was called with an argument that is <strong>deprecated</strong> since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /home/animals/public_html/mysite.com/wp-includes/functions.php on line 2925
[23-Jul-2013 13:41:28] PHP Notice:  has_cap was called with an argument that is <strong>deprecated</strong> since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /home/animals/public_html/mysite.com/wp-includes/functions.php on line 2925
[23-Jul-2013 13:41:28] PHP Notice:  get_theme_data is <strong>deprecated</strong> since version 3.4! Use wp_get_theme() instead. in /home/animals/public_html/mysite.com/wp-includes/functions.php on line 2841

Also when I try to use Image Uploader from Featured Image it comes with that error message:

An error occurred in the upload. Please try again later.

Looks like it is WP related issue rather than hosting/permissions. WP_MEMORY_LIMIT is set to 128M, PHP mem limit is same and PHP upload limit is 5M.

As further testing it looks like is related to the Media Library. If I will reset DB and leave all as is it works. When I will re-upload DB with almost 12,000 image it crashes.

Thanks

Ok so i’m on wordpress 3.8.1 and i was having this issue and i tried EVERY FIX from every post i could find on this problem of the image upload staying stuck on “crunching” or having it say “image data does not exist”

So apparently if the image dimensions (e.g. 1920×1080) are bigger than what you have set for your “maximum width” and “maximum height” in your Settings > Media, then you will have this issue.

I set my max width to 2200 and my max height to 1300 and now my bigger images upload with no problem!!!

Finally!!!! i hope this helps anyone out there