I ran into a problem when installing the new blender 2.83. When copying a collection and pasting it, either in the same file or in another file, it doesn't work anymore. I get the notification that the data blocks have been pasted, but I see nothing in the collection outliner. (they appear in the blender file layer in the outliner, but they are not working)
I can append collections, but it takes too much time compared to copy paste in v 2.80. I can also Select all the files separately and copy paste them, but then all my work of organizing them into collections is basically gone.