It has taken me a while to narrow this problem down. When I import any footage from the Osmo (.mp4, 29.97, 1080p), the timeline doesn't refresh when I scrub it, zoom in and out or anything. If I play, it magically updates the timeline.
If I delete the Osmo footage from the project, everything refreshes fine.
It doesn't matter whether I'm actually using the footage in a timeline or not. If it's in the project, it's not refreshing.
I've deleted the media cache and media cache files folder.
It's not practical to convert these to a different format.
I suspect it's the mp4 container. I'm going to switch the osmo to shoot .mov files instead, but that doesn't solve the current issue.
Dell T76000 Dual 8-core 2.4 GHz
NVIDIA Quadro 2000
NVIDIA Tesla c2075
Adobe Premiere Pro CC
After Effects CC
Cinema 4d r14