Dynamo no longer able to be undone in Revit?

after running a script my Revit no longer has a Dynamo instance that I can undo? another user from a different office is seeing the same behavior.

Revit 2018.3 - Dynamo

Try to read the known issues in the readme file… This is a known issue in dyn 2.0, along with the copy paste and other shortcuts, use rightclick

I appreciate the response. thanks jon

Searching ‘‘2.0 delete’’ gives you this as the first hit:


i dont have a problem deleting nodes…i can’t undo what Dynamo did in the revit document. there is no undo button, its grayed out.

@AdamHamilton it shouldn’t do that. Can you post your dyn file