I’m sorry you are encountering issues copying and pasting adjustments. I tried the steps that you listed, but I cannot seem to reproduce the problem. Here is a link to a video that I made: https://www.dropbox.com/t/0YGKECOICyEBwF6M
If you don’t mind, please check that out (and maybe do the same steps to see if that works). If you can also make a video for me, I can try those steps as well. You can post a link here, or email firstname.lastname@example.org.