If it helps anyone I was having this problem too and I found that somehow the super user permissions were set to edit own items only. Uncheck that permission, save and you should be good to go...
Joomla 2.5.11 issues
10 years 10 months ago #20853
dtwsol
Visitor
earthrat is right... however the other thing you should check is to make sure that your user is assigned ONLY to the super user group. Not also to Registered or anything else.
Yeah, I've discovered this some time ago. Unfortunately this is not the case right now. I've double checked everything... This is a bug... which costs me a lot ;(