nothing changes on the Widget
Reflector window when I hover over my
3D widget.
Can you drop a screenshot of that - when the cursor is over the element that you’re supposed to interact with.
Generally speaking you should be getting at least the name of the actor that owns the component; or the exact name of the widget element providing it’s set to something else than Not Hit-Testable.
You can also double check the 2d widget hierarchy to ensure that at least 1 element has its Visibility set to Visible. Grasping at straws here a bit.