I've added in-panel widget for foldable theme in Web AppBuilder (Developer Edition Version: 2.22) but couldn't see it in the header bar. I didn't notice any error for adding widget, but it didn't appear. There are four in-panel widgets migrated from version 2.19 to 2.22 but can't add additional (fifth) in-panel widget for foldable theme (Web AppBuilder 2.22).
I am not sure what I am doing wrong here. Please help me, I would highly appreciate it.