I was done with my project yesterday and saved it. I started up the computer today and reopened the project. Now the transitions are blank between clips. Yesterday the "blinds up", "blinds down" was behaving properly. Today the duration of each transition is just a blank screen. The intro and credit play properly.
It is as if a common command caused the transitions to go blank. I need to know so as to be able to avoid doing it again. I tried dragging another transition onto the timeline and it worked properly. There is also a "constant gain" segment that has appeared on the sound track directly below the first transition. I did not put it there.
Thanks,
Reg