Dynamo erases Input nodes

[TolgaEraslan]

Dynamo version

Dynamo Core 2.1.0.7500
Dynamo Revit 2.1.0.7733

Revit version

Revit 2020 STUDENT VERSION

Operating system

Windows 11

What did you do?

I placed some inputs to create levels on revit

What did you expect to see?

Inputs in my file

What did you see instead?

Inputs are erased from the file even after I saved several couple of files. Also, I open dynamo and dynamo player says "No inputs to edit" I even tried to open someone's while with same nodes in it.