Could not start Dynamo Sandbox , Unhanded Exception

I have literally just downloaded version 2.6.0 of Dynamo Core from

and am getting this error? I have Autodesk software installed which I have seen can be a problem


Does anyone have any Ideas?

Hi @jonny.pye can you verify you unzipped the .zip with 7zip or otherwise manually unblocked it before unzipping?

It was unzipped using the windows unzip, I just tried using 7ZIP and extracted it again and that seems to have fixed what ever it was. thank you