It could be! It is hard to tell without looking at the game itself, if possible, do you have a screenshot of what you saw in both your screens? Knowing the exact level and codes for you and your friend would help me troubleshoot it as well! But I understand if you cannot.
Another thing it could be is that the direction the character is looking does not matter, so maybe there was a character that matched it just was looking a different way and that threw you off?
Were you able to solve any other puzzles for that map? If a puzzle was generated bugged its very likely that others did as well as consequence, the way puzzles is generating is by following the exact same steps on both games, so one thing off will make everything else be off as well.