Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
using guake normally, then folding the terminal.
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
Using guake normally. Nothing out of the ordinary in terms of useage.
   * What was the outcome of this action?
Shadow, or lighter carbon copy window of the original guake dropdown window is
shown. It is actually a layer, so after retracting all guake terminal windows,
it is shown above all others. I can put these windows above the shadow layer,
but I need to hit the "super" key (I use Gnome), and that places the shadow
layer underneith all other windows.
   * What outcome did you expect instead?

No shadow layer

*** End of the template - remove these template lines ***

As additional feedback:

I have been using my system normally, and had noticed that the shadow
dissappears from time to time, but I didn't exactly know when or where or
what had caused it to dissappear.

Just now, the shadow was not present, and dropping down guake made it
appear. My unconcious knee-jerk reaction was to hit F12 to fold the shadow
guake menu, but I hit the wrong button. When I hit the button, the window
focus was on Chrome, and the button I hit was F11 (full screen mode in
chrome).

When I got out of full screen mode, the guake shadow layer was gone.