What version of Premiere Elements are you using and on what computer operating system is it running?
The Premiere Elements offers some anti-flicker opportunities for your video.
In the absence of version details, I will generalize. Select you Timeline video and use Anti-Flicker slider at the bottom of the Motion Panel expanded. For version 11 and 12, Motion Panel will be in the Applied Effects/Applied Effects Palette. In versions of Premiere Elements earlier than 11, the route would most likely be Properties Palette/Motion Panel expanded.
At the Timeline level, one can right click the Timeline video, select Field Options and then Flicker Removal.
Please review and let us know the outcome.
I am using a one-year old Dell XPS. PE version 9. Given this version, I am assuming there is no Anti-Flicker option at the bottom of the Timeline. I could not find one.
I cannot not fighure out where the Properties Palette/Motion Palette - is located.
I did try - Field Options - Flicker Removal and there was no change.
This is a new problem, and only happens as I mentioned when using effects (which I have been trying more recently) and then only happens when the camera moves (on a tripod). The movement is very, very slight - a very modest pan.