I am editing after a 5 mins or so I hit the space bar nothing will play and every clip is just a blank with a black screen. Premiere is not frozen, I can save, I just about do anything but the clip playback preview is just blank. I have to keep closing premiere and open it up back for it to work and play. It very much annoying. I also can't move a clip, I have to wait 1 min for it to move and then when I hit the play button and stop the clip wont move again. I am editing with .Mxf File shot on Alexia Mini LF. It's making my process very slow to work on a project, which the deadline is tomorrow.