It would be better to find the underlying cause of the problem. If you like, I can take a look at your site directly with the script debugging disabled, so as to see the problem for myself.
Email me login information at otto@wordpress.org and I’ll gladly take a look for you.
Thank you, Otto. I just emailed you.
I had the same problem you had. Are you using (or have you ever used) the Bulletproof Security plugin?
Bulletproof Security puts an .htaccess in the wp-admin folder that will prevent widgets from working correctly in 3.5.
Here’s the link where I found that info: http://wordpress.org/support/topic/troubleshooting-wordpress-35-master-list?replies=4
After deleting the .htaccess file that Bulletproof Security added in my wp-admin folder, all was well.
Same issue here. At first I thought it was browser-specific, but that doesn’t seem to be the case.
I have no .htaccess files in my admin folder and I’ve removed everything from my root .htaccess except wordpress’s stuff. I do not have mod_pagespeed enabled.
My current thought is that it’s CDN’s (cloudflare) optimization settings.
For reference, gretchenlouise’s problem turned out to be a couple of rules in the “PerishablePress 5G Blacklist”, which had been added to her .htaccess file.
I added this information to the master list, along with a fix.
I had the 5G blacklist on one site, and the BulletProof security install on my primary domain was apparently affecting the subdomain of the fresh install I did. So it was the square bracket issue both places.
Many thanks to Otto for his troubleshooting! It’s the first major issue I’ve ever had with upgrading WP.
Same issue here, upgraded today. I’m running a multisite with 7 sites, and it seems to be affecting all of them. Everything was working perfectly before I upgraded. It’s a relatively new install. I use Wordfence, so I don’t have the .htaccess in wp-admin, and I don’t use the pershable 5G blacklist or BulletProof security.
My site is at heksebua.com
As per the Forum Welcome, please post your own topic. Your problem – despite any similarity in symptoms – is likely to be completely different.
Ahh yes, that was a known issue in the 3.5 troubleshooting master list, however I’m not using that.
I just disabled cloudflare to no effect. Now I’m really puzzled.
again, my .htaccess is totally clean. I suspect it’s something being done on the hosting level.
Thank you esmi, you are correct. I will start a new topic.
My culprit was BulletProof Security Plugin leaving behind the affected htaccess file. all fixed now . thanks quantaweb.
My culprit was Widget Logic Visual
In my case it was Installer by OnTheGoSystems. Deactivated it and now I can edit my widgets section.
