Library List Remove…
Thanks for Reporting!
Can you give more details on below points.
Which Dynamo build you are using. (copy paste url)
What is your Revit version.
Is there any other Dynamo installed.
Did you get any error while installing Dynamo.
I had a similar problem some time ago with an earlier version of dynamo on Vasari.
Reinstalling Vasari sorted it out.
You could try reinstalling Revit.