When editing using the Sidebar Instant App using editor tools, the editor pane does not update the attribute values upon selection of subsequent features, even though they are highlighted.
Duplicate of BUG-000166058: Duplicate issue as BUG-000166058
解决办法
Use the classic or accordion pop-up panel, or view the pop-up in the map and not the panel.
Fully update a feature and return to the main editor pane before selecting a new feature.