I also have used it many times before, on VS U 2018 and never had an issue
However, VS U 2019 is somewhat of a different beast on my PC, having numerous bugs which cause It to crash
With this in mind, when I came upon the issue with the particular combination -photo - transition - black card, I did wonder if my experience was replicated elsewhere
I had used transitions elsewhere in the project successfully and wondered if the photo (static) to colour (static) may have been a problem?
This has turned out not to be the case and my problem is now solved in the response from Lata
Thank you for your interest
