It happened several times, so i'm mentionning it now.
When i enter the webbed woods from the sloped road, just when i pass between the two dead bodies, my character often goes flying up in the air.
It's the only place that happens to me.
That's not a bug, that's a feature. Or maybe it's a spider.
It happens to me in the same area near the entrance. I think it's a Bioware bug.
Bioware bug, to do with placeables.
Same thing used to happen during the Yuan-ti quest.