Footage Disappearing and going black
I was testing out my new greenscreen and decided to make an actor shrink like in the film antman, leaving a trail behind them. I got that to work perfectly, and added some effects like particles and lens flares. It was all working perfectly. After leaving it however, I come back to find that the footage without a speed effect has turned completely black, and the footage with speed at 0 has completely disappeared. I do not understand why this happened, as it worked fine before and I have not touched it in the meantime. If anyone knows why, please tell me. Cheers!