When using the video merge tool often the videos suddenly won't load and you can't play them. I check internet speed / connection and all is fine. But videos still won't load. This happens really often. Closing and reopening or refreshing the page doesn't help. Sometimes I am unable to use Adobe Express for 30 minutes at least before the videos finally load again. I understand that video files may be large, but its strange how they are working fine then suddenly stop loading.