Update to 2018.1.0 and or update (reinstall) videodriver.
thanks for your answer. I tried to follow both your advice but the issue still persists.
I am having the same issues which started coming across only after updating to the latest version (12.1.0). A number of bugs seem to appear everytime I launch Premiere, and regardless of restarting the system or reinstalling the software altogether.
The bugs found are as follows:
- project splash screen does not display recent projects and side buttons do not respond to clicking them
- upon playback of a loaded project timeline no sound will play unless a track is muted and then unmuted
- clips glitch out in the same manner as @valeriob28655130 reported, particularly when the clip in question is overlaid on top of another clip and then trimmed or adjusted along the timeline
Try resetting preferences.
Still having this issue? Let us know.