Good news and bad news @vmunozbe
Bad News: this may be more a Revit 2020 than a Speckle issue.
Good News: The model below is what I could send from Revit 2023 using your sample model.
I can’t confirm this hunch because I don’t currently have 2020 installed to check if this is an API support issue, but there isn’t a great deal of difference in our addon between versions other than what the underlying SDK allowed us to extract.