When first and second condition groups were set to A or B, and third condition was set to A and B, the first condition changed to A and B after saving and restarting the ArcGIS Online Map Viewer filter pane.
Duplicate of BUG-000169452.
This is a duplicate of BUG-000169452. This issue has been fixed and verified and will roll out with the Fall release of ArcGIS Online 2024.