There are no issues/errors in the console.
Is there a reason why the classes ‘chosen-container chosen-container-single’ would be used on one page and ‘chzn-container chzn-container-single’ on the other? ‘chosen-container chosen-container-single’ doesn’t seem to have any problems.
When the page loads (new event/ edit event), Chosen initializes those fields briefly and then it’s removed.