I have been using Outliner for years to rename groups and components from their default name to name that make things easier to find in a model. The issues I’ve run it to in the last few updated have been some add-ons (like V Ray) don’t like outliner being open. With V Ray it creates really long save times.
But now SKU 2020 is pushing to use the outliner more in our work flow, which does not bother me. But the problems from the past have not been fixed, and In fact its worst.
Per the attached bug splat when I copy an item multiple times it crashes. This has happen several time now since I started using 2020, this was not a problem in pass versions. If I have to minimize outliner every time I think of doing multiple copy’s or while using V Ray it become really annoying and costly in terms of time lose. I hope there is a fix soon.