CivilConnection2020 can't see library in dynamo

I have Revit 2019 with Dynamo 2.0.3.
I also have Civil 3D 2020 with Civil Connection 5.0.3 installed, but I cannot see this package in the dynamo library palette. However I can see CivilConnection in the Manage packages.

I thought updating dynamo to 2.0.5 might fix, but it did not.

Any reason I cannot see it in dynamo?

Yes - i followed the pdf install guide and that option ticked.

Revit 2019 & Civil 3D are both student versions - is that a problem?

Maybe I have to download an older version of CivilConnection.