Sample slots duplicating

I’m having an issue when adding samples to the sample sot list… using the method of scrolling through the list on the sample page, then pressing ‘function and enter’ on the desired slot… if I then select the sample and ‘load to project’ then it duplicates the sample (copies it to 2 sample slots). I don’t have the issue when I go to the Global menu then sample browser and select it from there, it’s only an issue when trying to use the shortcut.

Anyone else have this issue?