I have a curious problem with my work PC. It occurs with any video I've tried so far. Scrubbing works smoothly, but when I hit play in timeline, the playhead starts jumping a few frames back during playback. There is no apparent load on system (memory, CPU or SSDs), I have Ryzen 7 2700X (8-core) CPU, 32GB of DDR4-memory, RTX 2080 Ti adapter, two SSD disks, a 4K and a FullHD monitor. Videos play back just fine on Windows. I've tried several codecs, wrappers and resolutions, they all behave the same, even a 720p video.
Any ideas? I didn't find anything on Premiere settings that could cause this. I've also flushed the Media Cache (in fact I completely relocated it and deleted the old one).
If that doesn't work, try resetting the Workspaces: Reset a workspace Reset the current workspace to return to its original, saved layout of panels. 1. Do one of the following: • Click the Workspace menu icon and select Reset to Saved Layout. • Choose Window > Workspace > Reset to Saved Layout. from here: https://helpx.adobe.com/premiere-pro/using/workspaces.html
If that doesn’t work, try updating or rolling back your graphics driver directly from the video card manufacturer’s site.
If that doesn't work, try creating a new project and import the old one into it.