An interesting problem, if you search for a feature in the Search widget, the feature is found and an attribute popup opens. The feature action items in the lower right do not include the action to Open Attribute table though. If you open the attribute table the feature is not selected.
If you "deselect" the feature and then click on it - the feature action items now include the Open Attribute table. If you click this, then the attribute table opens but the feature is not selected.
If you click on the row in the feature attribute table then the feature shows as selected.
Has anyone else seen this? The selection shapes are different in the three scenarios as well.
I am having a similar problem with the Select widget. I can select some features and initially the attribute table number of selected features matches what the tool shows but once I add or remove features from my selection using the widget, the table only shows the new select and loses the initial selection