I am unable to box select items but I can select items by individually clicking on them. If the gameObject has a custom gizmo, it can be selected with a box select. Are there built in filers in Unity’s box selection? Selection is not disabled in the hierarchy.
I have the same problem currently with Unity 6. Did you find a solution to this problem?
Unfortunately I have not. I am still exploring a solution.
Did anyone file a bug for this? Unity will not prioritize without it.
Same thing happening for me now but only in some scenes. Can always click select but box select only in certain scenes. Anybody figure out what this was?