appointments + moves confirmed appointments to removed

after trying to transition my client from physical calendar to appointments + I have run into a strange situation. after adding several appointments manually to the backend of the site after a while the first 7 get automatically moved to the removed tab.

check out the video that I happened to be recording at the time, notice the removed tab jump to 7 after save/update.

Has anyone else had this happen? any fixes? Disable pending and minimum time are both set to 0 in settings.