Found the solution, I have to re-add the shortcodes.
Don’t know what happened, but tried again, now it is OK.
I no longer get the error, thanks!
I’m scared to upgrade to 3.6.1, most of my sites are on 3.6.0 pending this issue. Has there been any progress? Just wondering. 🙂
Same issue here. I have the latest version. Appears to be affecting one of my websites really badly, in particular. Maybe its a conflict with some specific plugin, I can’t really say.