Flythrough Lightworks Issues

[Wokka]

Just wondering if anyone has a similar problem I've encountered recently but couldn't find any previous reference to it.
I like to set up a heap of cameras for the project and just render as a set of still using fly-throughs. I also have a set of face camera objects (People) so I need to rebuild the model for each frame. I found that this also will update the sun angle to the relavant camera and not use the first cameras sun position.
Now for some reason, when I start the render it will usally (but not always ) increase the sun's strength to blow out the image compared to just creating a single image.
I only use a sun object and a sky object and settings as shown.
Can any shed any light on the problem? (Pun intended)
PS I had absolutley NO input into the architecture!!!!

[TomWaltz]

By any chance are you using View Sets for setting this up? I know View Sets include all the photo rendering settings and could have an affect.

[Wokka]

Tom,
Good idea but the cameras were set up without viewsets.
I think I found the culprit though.
Cutplanes!
I had a cut plane turned on and for some reason this effects the lighting for the first frame only! Turn them off and the renders behave themselves.
I would appreciate if you (or anyone) could verify this for me?
Cheers

[TomWaltz]

If the sun is outside the cut plane (or a marquee) it could definitely have this affect.

[Wokka]

Tom,
I'm not as silly as I look, I couldn't be that silly , the cutplane was several kilometres away hiding some reference objects. The sun and sky objects were right in the middle of the building.

Cheers