Question: Stuttery playhead in 10.4
I'm on a maxed out 2016 MacBook Pro 13" Touch Bar editing various projects in FCP 10.4.
At various times the playhead moves in a stuttery motion across the timeline in increments of about 0.5 seconds. This makes it very hard to do precision editing. In most cases I can make it stop på selecting a clip in the browser and playing that back very briefly, so when I return to the timeline, playhead moves fluently again. Sometimes it takes a couple of trips back and fourth from the browser. It seems like the problem usually arises when I make an edit that triggers the magnetic timeline feature. An example could be making a simple in and out point a hitting delete. This will in most cases make the playhead move in increments again. Another thing is that the timecode counter only updates in increments identical to the playhead movement when this occurs. So it definitely seems to be a UI bug, but I haven't found anybody else complaining about it.
I'm almost certain that I didn't suffer this issue on any previous versions. I've always found X to suffer from what feels as memory leaks. Best described as the feeling that after intense editing in a longer timeline the UI gets more and more sluggish after 10-16 minuts of working. After restarting the app it gets back to be speedy and responsive. I've learned to live with this but this issue with an extremely sluggish playhead really drives me nuts.
it doesn't seem to matter if my library is stored on the internal SSD, my Lacie 5 disc TB Raid or a simple USB3 drive.
After instaling 10.4 and updating libraries and discovering the problem, I made a clean install of High Sierra and only installed X. This didn't resolve the issue.
I would deeply appreciate any input or shared experiences about this issue.