Can not select object in other collection I'm using Blender 2.8 (Windows 10).  I have two collections.  One With a plane that I would like to hold a projection of an image I would like to convert into an object.  The other collection with the object I am modelling.  Somehow the wedge object is unselectable and I can only select the plane object.  Trying to access it from the objects list and choosing "select" just results in the image below (but does not allow me to edit it using the "Edit mode" options.

Can not select object in other collection:


Can kind of selected object in other collection but not really by using the "Select" option.  This does not let you actually edit the object though.
This is a classic gotcha.

If you see this in the 3D viewport ...



You're still in Edit Mode and although it looks like you've selected another object, you really haven't ... you've added a secondary object to the selection.

Hit the TAB key to go back to Object Mode, then you should be able to select objects normally again.

Alternatively if you want to stay in edit mode but switch objects then you can simply click the Edit Mesh toggle in the outliner.



This is a real pain in the -Z, something I hope is addressed in the future.  It catches me out daily.