It's been said by some fans that the lasso's truth powers only make the person bound tell the truth as they believe it to be not the objective truth. This interpretation was commonly believed among fans in wake of Max's death at Diana's hands (it was used to bolster the argument that killing Max was wrong, never mind that Max would know more than anyone else the range of his own powers).
Anyway has this ever been the case before that Diana used the lasso and only got the truth as the person knew it?