Happy Birthday, Patrick
The first board has a scroll with several /idle commands, resulting in some text never being displayed and a message (to a non-existent label) never being sent.
The second board uses #change to create an animated effect, but doesn't have any /idles breaking it up, so the effect doesn't work --- This may be due to CPU speed differences, except for the fact that the game recommends running it at a slower speed (most likely to mitigate this issue).
Likewise, the final board tries to have an invisible thing fade-in using #change commands, but the lack of /idles once again ruins the effect.
(Dr. Dos's note: The first animated effect still does some form of animation, whether or not it's meant to be a nice clean cycling or the staggered effect from hitting the instructions per cycle limit is ambiguous. The latter one doens't loop though so the animation instantly reaches its final frame which is less likely to be intentional. )
(Report entered by Dr. Dos, original report by RT-55J)