I am having issues with missing files. I try to reconnect but that never works. The only solution I've come up with is deleting the missing files and reimporting my footage. The problem is that when I come back the next day different files are now missing (ones that were imported into the Library). Today I opened a project to find that all my files for my latest project were missing. None of the clips were missing the day before. I have 500GB of storage left on my computer and have the latest version of FCP but I am still using Yosemite. Any suggestions as to why this might be happening?