I had a not visual bug on 2nd question:



which resulted in 530 out of 550 points at the end:

en.wikipedia.org
There was also a new bug, where I selected correct answer (green), but it showed like I selected another at the end (red):


en.wikipedia.org
The number of points showed, that it was a false negative visual bug (otherwise, 30 points may be deducted for 3rd question).
The description of the answers also showed, that they were selected right.
Moreover, I participated in the same GalaQuiz at
26 September 2020 and won it.
Overall, lost 50 points for latest GalaQuizes, because of such not visual bugs. Fortunately, the "not visual bug" results were on 2nd and 3rd questions only, so "on top 100" still.
Edit: The profile was credited after contacting support.