While everyone is at the supper, Henrik collapses on the table. Anna puts her hand on his right shoulder but after a cutaway to Fredrik's face, her hand is now on the left shoulder. She is also much closer to the table, and Fredrik is looking the wrong way.
When Egerman looks in the mirror at Desiree's, his nightcap is bent forwards over his face. In the next shots after he has moved away from the mirror, the nightcap is now bent towards his right shoulder. However, he probably just adjusted it off-screen, a natural thing to do in that situation.
When Count Malcolm demonstrates his knife throwing skills to Egerman at Desiree's, there is already a hole in the eye of the woman in the picture before the knife hits the target.