Hope this helps someone sorry this may be lengthy read. I ended up just editing with a slow computer yesterday. It wasnt absolutely horrible once I got to a point where it was lagging less. All my external drives are full and my smallest project I have contains 400gbs of assets so I have no way at the moment to migrate my media to another user, because I have 100 gb left n my internal. I suppose I could just move one of the 10.1 libraries from my current user to the sharred folder and then put them in movies folder of other user but I am in the middle of a project with a deadline and im scared of bouncing that folder around. Also thinking there are problems with the original updated library. If I try to update an old event and library from my backup of 10.9 it will need the media thats in there and I dont have enough space so the different user solution was not an option yesterday.
One Strange characteristic I found that seems it may have helped a little, but difficult to say because I did a few things, was that the main project I am working on, and having problems with, was that about 40 clips I used in the project are h264 clips in my project instead of my converted Apple pro res 422. Then In my browser I had 2 versions of each clip for those as well. The Apple pro res and the h264. I tried relinking all those h264 clips in my browser to pro res ones and it was strange it worked for some and not for others I had to manually find the same clip for about 10 of them and reedit into my timeline. However I have edited with h264 before and never had lagging so it cant be that but that was strange.
I also went ahead and made individual libraries for each project by selecting the events then -File - Move to new Library. Then I deleted the original library and closed all the other libraries. Im sure that this helpped me the most because I noticed a big change after rebooting.
Another thing that was strange was that in 3 of my events before I turned them into libraries I had caution triangles for disconnected media. However in two of them once I selected them to find what was causing it, the thumbnails would start to load and the caution triangles would go away. I relinked all the media in those events.
So far today its much better but still laggy and far from being an upgrade for me. After I wrap this project I am uninstalling and reinstalling buying another raid thunderbolt and migrating every FCPX project and their assets to that drive.
These were some of the characteristics I was experiencing at its worst.
-General lagging all the way around. Lots of hesitation if im editing quickly, at times it will freeze up and miss 3 to 6 moves and try to catch up then really lag. It reminds me of edintg at my film school G3's in 2002.
-When scrubbing quickly, or moving a clip in project by method of click and drag, it will freeze stall momentarily at times and then recover
-Occasional crashes (about 2 an hour)
-If I right click a clip in the time line for reveal in browser I always have to do it twice for it to work
-All thumbnails in my events take a very long time to load and you can hear the computer chugging at times . (My largest event only has just over 1000 clips and some have as little as 50)
Hope this is useful for someone. Hoping for an update soon. -Trav
