When we update a series of "Events", only the one that we're actually in updates. The rest are then separated and must be updated one by one, even though they are a series. I put an event series on Fri, the 19th, of Jan thru 12/31/24. Yet when I went in to name it to "lunch", it updated the Fri event only, and not the series. It's never, ever done this before.
And it changes the original event series from 1/19/24 - 12/31/24 back to 1/19/24 -1/19/24. It should never do this.