My 13-second animation has been rendering for about a week and I expected it to finish today. However, it's been rendering past the end frame (starts at 25 ends at 330) and is currently at 337. Does this usually happen or how can I fix this? I also notice that when I try to play the animation while it's rendering, it says the file is corrupt; I thought it would at least play a few seconds of what was rendered. The output format is FFmpeg video.
Also notice that videos can't be viewed while Blender renders them. You can only view them after the rendering is completed or if you abort the rendering.