After upgrade to 4.4.7, Suffusion ad hoc widgets stopped showing. Instead, the browser just show the following text: [suffusion-widgets id='1'] .
In my page the above widget script is within <div></div> brachets if it makes any difference. MY WP is 3.6.
Aside from this, different browsers now show different html body background colors (only IE shows the right color; Chrom and Firefox now show black background). But this is a minor issue relative to the ad hoc widgets.