Please tell us about your system.
Does this also happen when there is more battery life?
Did this ever work?
Does it work when you save to the desktop instead of to the Cloud?
What's in the file?
WHat does the artwork consist of? Did you use text, placed images, effects, third party plugins? ... what did you do?
Sorry to hear about your experience. In addition to Monika's response, I'd recommend following instructions to save .AIC extension files on this help article.
Hope it helps.