Two issues in Session 14: When typing the conversation, there is a "sie" instead of a "Sie", and in the last matchup exercise there is "pane" in the answer rather than "plane".
I've noticed many stumbles in both the audio and video components in levels 1 and 2 - too many to list. I wouldn't say that they detract much from the overall learning, but the materials would have a more professional feel if those are edited out.