When a GUI object is selected in the Explorer (excluding ScreenGui), clicking anywhere in the game viewport causes a 3D part to become selected. This occurs even if none of the manipulation tools (Select, Move, Scale, Rotate) are active.
Attached is a video of this happening. This affects me on a daily basis since I click the viewport to hide the ui editor tags.
Expected behavior
Clicking in the game viewport while a non-ScreenGui GUI object is selected should not change the current selection. The selection should remain on the GUI object unless a new object is explicitly selected in Explorer or via a tool.
Actual behavior:
Clicking the game viewport forcibly selects a 3D object (typically the part under the mouse), overriding the current GUI selection. This disrupts UI workflows and appears to ignore tool context.