Amnesia Model Editor odd problem

[The Rock Worm]

So far as I can see, no one has this particular problem. At one point my Amnesia Model editor was working fine. One day I had, I think, deleted a test folder that had the Penumbra Rock worm in it. This model was one I had recently imported into the AME (Amnesia Model Editor). Ever since then, whenever I try to import a new *.dae, it takes me to my root directory. The AME doesn't allow me to select a different place as it wants to load the file (yet no files are in the root directory). Does anyone know what to do to fix this problem?