When trying to upload a place (Win10) nothing was happening when clicking. So I clicked the button again. And again.
My studio then froze for ~20-30 seconds, and then it started spam-uploading the model to Roblox.
Skip to 44 seconds to view the spam upload in action
At 15 seconds, I clicked “Submit” 3-4 times with 1 second between each click.
Studio then froze until 44s