simongreenland

Thanks for the reply, Cais.

I did mirror the site, but the first thing I tried was rolling back NextGEN to 1.9.13. This now works – I can create new thumbnails, I can upload images, and there are no longer any JSON errors. I can’t use Flash uploader, so I’m stuck with one image at a time, but for the time being I don’t care about that, the fact is that I can upload.

I forgot to say that:

a) This happens regardless of how many images I try and upload at the same time (1 or 3 or 10 etc), and regardless of how big they are (I’ve been testing with 180px x 180px images, all less than 100kb).

b) This happens on both the latest versions of Firefox and Chrome.

I thought this would have been a mod_security issue, but I’ve tried all the tricks I know regarding that, and I still get errors. Oh well, time to cut my losses, ditch the plugin and resize by hand.

That works for me too. A million thanks, ajgon!

Is it the case that you’re able to arrange the thumbnails okay during the sort phase? As in, the drag and drop works okay but the order isn’t being saved to the front end? I’m having a sort of opposite problem with 1.9.3 – on every system I’ve tested my site on, the drag and drop function is screwy but once I manage to wrestle the things into place they are saved. Sorry I can’t help… I just popped in here to ask whether you were able to drag and drop okay.

What kind of images are they? JPG? Do the file names have any non-standard characters, like umlauts, apostrophes etc? Are you uploading them via the flash uploader, or non-flash? And are they being uploaded as part of a folder, or individually?

What’s your sort problem?

Well, that was quick – I’ve figured out what my problem was, so hopefully this will help with other people too.

I had a bunch of users that were all subscribers. None of them were able to use the NextGen flash upload, but they could all use the non-flash upload. It turns out that although they had privileges to upload via NextGen (in the NextGen roles settings), subscribers don’t have normal WP upload privileges. It seems the NextGen flash upload ignores NextGen roles and checks WP roles instead, so all I had to do was install a role manager plugin (I’m now using Vladimir Garagulya’s User Role Editor) and allow Subscribers to upload_files. Hey presto, they can now use the flash uploader.

Same problem here, flash uploader gives HTTP error on all systems I’ve tested (Firefox, IE, Safari, Chrome) whereas non-flash uploader is fine, but obviously only takes one file at a time. deepthy’s fix of chmodding /upload.php had no effect.

I’m using NG 1.9.3 on WP 3.3.1