Hi,
I am not sure if I understand your question corretly, but I will try anyway 🙂
I had Fusion 360 installed for quite a while, but I wasn't using it much. During my initial installation I did not encouter any problems (error messages etc). Just simple and smooth installation process.
Lately (2 weeks ago - more less) I decided to give it a try and learn a little bit about Fusion. When I started the software I was told that update is available, so update was done and I started using Fusion. I did not have any problems until I decided to use drawings functionality. Then I started getting that message I wrote about in my first post.
I have installed Fusion (Control Panel - Uninstall software), then manually removed all bunch of folders (as described on your website) and downloaded and installed Fusion agan. And now drawing is working just fine. Not much else to say. When I was getting asn error message I also got a window asking if I want to send error report to Autodesk. I answered yes and I have sent it twice. If it matters. Hope it helps.
Take care,
Marcin