I uploaded some movies onto my Mac OS X desktop via Adobe LightRoom 4 and iphoto. I imported them this way because Final Cut Pro 10 did not recognize my Canon EOS 7D for importing. After I imported the movie files, I dragged/dropped the movie files from Lightroom and iphoto to Final Cut Pro Events.
I don't use Lightroom or iPhoto, but from what I read it sounds like you are saying you opened the original files in those apps, then dragged them directly from the app into the FCPX Events Browser, is this correct? If so I wasn't aware it was possible to do this.
If it is, and if it's what you done, that may be where your problem is. Could this have created an alias in the FCPX event folder but with no real source, or with the intermediate apps linking the alias to the files they were sourcing that you then deleted.
I don't use them to test this, and it does seem strange.
If all the stuff you had previously imported, that there is no problem with, was imported in the exact same way as the stuff you lost then this is definitely not the problem, but if this was the only time you imported in this way perhaps it is?
In addition to that I also have files that say "Missing proxy" but I have control clicked on each of them, transcoded media and changed it to "create proxy" and still some of those files say the same thing, but some are fixed. How do I fix that?
The FCPX timeline says "Missing Proxy" if you change the "Playback Preferences" to "Proxy media" but haven't created any. If you change it back to "use Original or Optimized Media" it should look to the original imports, but will only find them if their still there.
Is it related to my above question?
Could it be that's all the problem was originally, that you had imported properly, and without creating "Proxy Media" then somehow you changed that setting in the "Preferences".
If so could you have then deleted what was really in it's correct place while trying to fix a problem that was only a setting issue?