Hi there,
so this describes a tiny bug I found.
1) create a new team, remove routing rules, escalation policies and on-call schedules
2) create an on-call schedule "2021"
3) create a rotation "default" into that on-call schedule "2021"
4) create a rotation "vacation", also into that on-call schedule "2021"
5) now the final schedule section shows both rotations
6) remove the rotation "vacation"
7) still both schedules are shown in the final schedule section

Best regards,
Marco