Broken links and multiple duplications

I have two issues that are devastating my workflow/productivity. First, when I duplicate an artboard using the keyboard, the links to not duplicate with them. I found a workaround that resets the issue by using the dropdown menu. I can then use keyboard commands for awhile before the problem arises again. The second is that when I duplicate and artboard or elements from an artboard, I get multiple items sitting on each other. For example, if I copy an icon from one artboard and paste it to another, I will have two to three of those icons sittig on top of each other. I have cleaned up artboards to make sure I only have one of everything. I then duplicate that artboard and the same issue arises. I am soooooo behind on this project playing whack-a-mole.