When I downloaded the Amboss addon, I am unable to flip the cards. I can see the first card, but I am unable to flip it to see the answer. When I disable the addon, it allows me to continue studying. This happens on both my laptop and my desktop. I just downloaded the updates for the Anki app as a whole and checked for updates on the Amboss app and it did not fix it.
It’s probably too late but I would directly contact the creator of the Amboss add-on. It’s unlikely that they saw this issue in this forum.