Shuffle / Lock questions broken

Hi Microsoft,

Found another bug on the Forms Quiz feature, when you select "shuffle > all questions" it shuffles them.

When you select "Shuffle > lock questions x - x " the questions are not shuffled.

I've tried various combinations of lock 1 - 1, 1 - 4, 46-46 etc. but effectively, if you lock specific questions none of them are shuffled, everyone is locked.

I'm trying to lock Q1 which is the students' teacher, and shuffle the rest but it appears this is another broken feature.