Sounds On The Screen Linking

Anyone else had a problem with sounds in the main window linking and not being able to unlink them?

I have multiple layered kicks as blocks on the screen for example. When I click one of the kicks, 2 or 3 of the other kicks will select too.

Any idea how to remedy this? I’ve tried CTRL U on the parts themselves and the folder and group but they still appear to be linked.

I’m using Cubase 9.3 and this didn’t happen with previous versions.

Thanks

Do the parts have a ~ symbol?