I've encountered a weird bug today when grabbing the edge of a clip and trying to extend it in the timeline. Each time I do, the timeline will being to scroll left for no reason. Even when extending a clip to the right, the scroll goes to the left.
I've used different mice (magic, non). I'm on two screens which might be an issue? But again, I've run this setup for some time and never run into this issue. Affecting all projects and sequences.
Running Premiere Pro CC 2017.0.1 release. 11.0.1 (6) build. Mac Pro (Late 2013) OS 10.11.6.
Ok I figured it out on my own. I moved the main window to the other display and things are working properly (can drag footage around, no scrolling when shrinking clips, etc). Even works now on other display when moved back. Very strange...