So you still have the same missing scan lines. The first edit makes no difference.
The second edit just shows Partial Display without any Vertical Scroll.
Did you make the VLE1 edit?
Both videos show bad "SOFTWARE SCROLL".
If you have a slow internet connection, you can either change the delay times to make a shorter video.
Or simply video a shorter sequence e.g. just the Penguin screens.
One single photo of readpixel_kbv in PORTRAIT mode would show the readPixel problem.
I will post some changes directly on the test_0139 Branch tomorrow.
David.