I'm teaching myself After Effects CC while trying to make a music video. I use the spacebar or the 0 on the numeric keypad to preview my work. When I press one of those keys a second time to stop the preview, After Effects often ignores me and continues playback.
It's very frustrating to carefully time a spacebar press to place the Current Time Indicator exactly where I want it and have my input be blithely ignored by the software. What can I do to ensure that After Effects CC will always respond to keyboard commands?