Android specific bug
In the events tab, filter to a group of cameras, then exit app. Then open the app and go back to events, the events page shows ALL CAMERA events, even though filter still says it is turned on only for that filtered group.
To show this is happening, if you click on your filters icon, and then click cancel, then wait a couple of seconds, it will show the green button with the number of cameras you have in your selected group. However, all of your events will still show up. You need to pull down to refresh and then only your selected group events will show up.
This only happens on Android and only for event filtering a group of cameras.
Android 2.28.0 (102)