Ben shabowski

Should @e select the closest entity executing the command? There for the zombie executing the command?

Either this doesn't change to scoreboard score or it is not displaying the change from the score

To my understanding this should set any zombie with a rotation minimum of 88 and a maximum of 90 to a score of rotation equals 90

Sorry I typed the command in wrong to this comment. It is execute @e[type=Zombie,rym=88,ry=90] ~ ~ ~ scoreboard players set @e[c=1] rotation 90

More specifically execute @e[type=Zombie,ry=90] ~ ~ ~ scotreboard players set @e[c=1] rotation 90

This is also a problem in 1.8.3