Sorry for the title but this bug is somewhat hard to explain.
Here i have 4 same photos without animation and with the default node placement.
The slideshow is a static frame of the photo.
However adding a node in the middle of the opacity graph forces the default start node of the opacity to be zero. Therefore having a frame that is empty.
In this photo I add a node in the middle of the opacity graph of the 2nd photo to show what’s happening.
What is expected is that even though i add a node there shouldn’t be any change in the slideshow. However a frame is clearly just a black screen during the 1 sec mark.
I have been using fotomagico for years now. And this bug always bothers me because to resolve it you must delete the starting node twice. Would appreciate fixing this in a future update.