I get this all the time and it is driving me round the bend, so much so, I am going back to FCP7 for my next project, reluctantly I must add, as I love the concept and interface of FCPX but just too time consuming.. Anyone got a fix for this yet 🙁
I am having the same problem and I have Motion 5 installed so that isn’t the issue. I am also experiencing a horrible zooming issue where I zoom in and it keeps zooming to other areas, usually the start of the timeline which is very irritating. I do love FCPX but needs ironing out a tad 🙁