Event Submit Form Broken in 6.0.1

Since I’ve upgraded to both 6.0 and 6.0.1 my event submission form is broken, specifically the date selection field for either single or recurring event.

If you click in the field, no popup calendar appears. You also cannot manually type a date.

The hour field behavior isn’t great with a drop-up instead of down and not having a solid background behind it and just overlaying page content making it hard to read. This is manageable as users can type in the field.

The behavior is the same both logged in and logged out and on both Chrome and Safari on laptop and Safari on iphone.

The page I need help with: [log in to see the link]