Revit 2020.2, Dynamo 2.3
When insert code block node for the 1st time, there is no problem.
When I reopen the dyn, the code block node has no editable area, but other node is OK, as shown in the below
1.dyn (3.1 KB)
Revit 2020.2, Dynamo 2.3
When insert code block node for the 1st time, there is no problem.
When I reopen the dyn, the code block node has no editable area, but other node is OK, as shown in the below
Then I open the dyn with Dynamo Core Runtime, it has no problem
Check for an add-in conflict, likely in CEF or similar core component, noted in your notifications dialog (the ! symbol on the right of the menus).
Thanks, looks like it conflict with 3rd-party plugins.