How to get mesh syncing & syncback working?

[pxky]

When I try to sync a .rbxm with a meshpart argon throws an error:

However when I run vscode in Administrator mode the above goes away but I then get this in studio:

I also cant figure out how to get syncback working, are there any guides for this? The link in docs point to Argon Plugin settings where I believe I have them set up correctly...