I had a very bad surprise a few hours ago when I connected to my blog.
In the widget sidebars all the lines were separated by a blank line, exactly as if I typed a “br” between each line in my widgets by editing them :-((
A second bas surprise was to see comments set in the widgets appearing on the screen ! So I had to move them qickly somewhere else in order to prevent readers to wiew them ! :-(((
As I did not know if these unexpected and unwanted changes were in the CSS sheet of my theme Andreas09 or in the main CSS, I tried to change for another theme.
In Garland theme : exactly the same problem plus another : the right sidebar appears now UNDER the posts !
In Fadtastic theme : sidebars do not appear at all !
I think that it is a new bug due to unwanted and harmfull changes in the CSS sheet of WordPress.