Customtization window hides calendar

In the web version, when setting up a plan, I click the customization slider to adjust departure SOC and date. When I click the date box, the calendar to choose a date pops up BEHIND the customization window, so I can’t access it, and I can’t type in the date manually. If I slide the customization window down to get it out of the way, it closes and returns me to the main screen. (Using current version of Chrome on current update of WIndows 11)