Paste in place - copy and pasting from one dartboard to another pasting in the wrong place (off artboard)

@richardesignerUK Try this. Make sure Rulers is Artboard Rulers. Click on your first artboard. Reset the origin point to the top left corner by clicking on the corner of the rulers. Copy. Now click on your second artboard. Is the origin at the top left corner? If not, when you Paste in Front, it will paste it relative to the zero, so will be elsewhere on the page. If you reset the origin point to the upper left corner on the second page, and then Paste in front, it will be in the same position.

Switching to Global Rulers seems to “remember” what the origin points were individually. This is probably something that should be looked into as a bug. But since there’s now Paste in Place (which is a more recent thing in the history of Illustrator), that’s probably the one you want to use. Paste in Front and back came from a time where artboards didn’t exist so it was more a tool to move things up or down in the layer stack.