After upgrading to the latest version of d.o. and importing my previous configuration, I have noticed that content type viewing is causing file names to appear wrongly - example.mp3 eventually and arbitrarily becomes ex~.mp3 This happens randomly. If I un-check use content type formats, the problem vanishes.
I did a clean install of d.o. and now it seems to be working properly. Though I have noticed a few bugs here and there, they are trivial in comparison to the saved time and effort one gains with this program.