Event on the list view appear to change position

[JaimeLeon2]

This is an issue I have noticed happening with some frequency, but I cannot identify how to reproduce it.
The event list order used to be quite consistently shown in the creation order. Not always anymore.
A filtered list may show 50 events for one vendor. This is usually shown in the created order. What I notice is that sometimes, after editing an event, the position of that event is changed in the list. I cannot figure out what is the criteria for the new order. Reloading the page does not change this new order.