Notch watermark visible in D3 issue

I have a D3 License and 2 Notch licenses. One is OLE and the other one is Notch Builder.
My PLE is using the D3 dongle and my Notch Builder is in its own dongle.
When I export Notch blocks from builder and import into D3, the water mark shows in D3.
I need to solve this problem.
Do I need to remove the PLE license from the D3 dongle in order for it to work? Is there any other method?
Please help
Isabel Clavo