Hello I would like to report a bug which is very simple to fix I think.
Basically, you can’t configure your own bundles if you reach them from the website :
The Roblox provided link by the website page : https://create.roblox.com/creations/bundle/390982/configure
The Roblox working page provided by the dashboard page : https://create.roblox.com/dashboard/creations/bundle/390982/configure