Same issue as mentioned in #1.
Maybe the software is now optimized for the S30 that has a larger FoV and that's why S50 will not auto-center the Sun or the Moon?
As I saw, hitting "No" for the question "Is the Sun in the center?" will not solve the problem, neither re-targeting it. After closing telescope arm and re-execute GoTo the Sun, it does the same, puts the half Sun in the upper left corner...