I just recently come across a problem I've never had before: Whenever I import a file (photo or video) into my project, it shifts all the other objects in my project to the right - leaving an empty spot (above/below) where I place my imported file. It doesn't matter where I import it - either an empty track, or an occupied track with enough room for the file. The only way I am getting around this is by locking all the other tracks - which seems unnecessary - I've never had to do this before. I switched to another project, and the same thing happens - so it's got to be some global issue. Something I hit by accident? Does anyone have any idea what could be causing this? Thanks in advance.