Stereo panorama capture plugin and exponential fog

Hello! im trying for the first time the Stereo Panoramic capture Plugin, and im having a problem with the lighting.
My scene is set up with a normal Sky Light and an ExponentialHeightFog for ambientation propouses.
When i get into play mode, the scene starts really dark, and goes gradually up (i gues becouse of the fog that gets dense with time), and gets to a good level of light.

then i procede to take a screenshot using the command sp.panoramicscreenshot and it goes well, except that when i go to see the left and right images, they have almost no light on them, like here

any idea what could i be doing wrong?
thanks in advance!

The reason for automatic exposure