Since TouchGFX 4.19.1, the slide transition does not work properly in portrait mode: The old screen that should slide away, gets erased when the transition starts. So the screen consists of random pixels. The new screen that's sliding in, is allright.
I encountered the problem yesterday when I updated from 4.18 to 4.19. My project worked as it should, except for the slide transitions.
To be sure that it has nothing to do with upgrading a 4.18-project to 4.19 I made a new project with two screens and slide transitions. The problem is the same, see picture 1. On the picture, the greyish part is the new screen sliding in and the colourful part is the old screen sliding out, but it's all random pixels. (The old screen should be black.) The display orientation is set to portrait mode.
Then I tried the same project in landscape mode and there were no problems, see picture 2. Again, the greyish part is the new screen sliding in and the black part (with red box) is the old screen sliding out.
It doesn' matter what direction I use for the slide (N/O/S/W).
There are no problems with the cover transition.
In debug mode, the random pixels appear in the framebuffer and animation storage, as could probably be expected. But I don't know why they appear and why it depends on the display orientation.
Has anyone any suggestions?
The threads
https://community.st.com/s/question/0D53W00000j7MbqSAE/slide-screen-transition-problem
https://community.st.com/s/question/0D53W00001JUrboSAD/touchgfx-screen-transition-graphics-corruption
did not help me.
