Bad layout of multiple choice questions in Boost theme

Note: Test using Boost theme. In a course, click on the actions menu and click "More..." On the Course administration page, click Questions under Question bank. Create a new question → Multiple Choice with the following settings: Question name: whatever Question text: whatever One or multiple answers: multiple answers allowed Choice 1 to Choice 4 with feedback for each choice Grade 50% for Choice 1 and Choice 3 Grade -50% for Choice 2 and Choice 4. Save changes and continue editing. Hit preview. Tick all choices, click "Submit and finish". Confirm that check/wrong mark and the feedback text are nicely aligned with the choices with some nice spacing between them.