Edit single calendar event w/in series not changing calendar folder

I have a series of events w/in my Google Calendar and when I click to change a single event w/in the series, change the calendar that its associated with, it will not change.

I can change the ENTIRE series, but not the single.

Example being I have a “requires payment” and would like to change the single event to “payment made” but can not do it w/ the single event option.

Is this a known bug, or something that Im doing wrong?

Hi, this is not bug, this is not possible to be done.