Listing order different on full calendar vs. default

Been scratching my head over this for days. The calendar shown in the link for this thread shows dotted colors and match the legend perfectly. However, I want to use the full version for larger colors and day/week/month. Even though it pulls from the same category like the other, the calendar gives the wrong order for the entries on this page using full calendar: https://1stchanceryms.com/calendar/tester – I have recreated the calendars time and time again, but it seems switching from default calendar to full calendar mode throws the order off. I’m stumped and haven’t heard back from support in 2 days so thought I’d try here. Thanks!

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