I was training with Bořek with my sword and then I followed Bořek to train Archery.
We had a conversation about archery. Then I was told to pull a bow and try to shoot on straw targets.
Right after the sentence, I was not able to move anywhere and another cutscene started - Jan Ptáček was talking to me. The discussion ends and I was not able to move anywhere again but I could shoot at straw targets at least.
I think it’s a bug.