Sorry, there was an issue when downloading online Projects with Electronic Toolbox for iOS (thanks again for reporting this Claude!).
This issue has now been fixed with Update 12.0.6.
That version also includes some additional minor improvements.
How do you like the new Windows Project Editor ? Two users already sent me their project files, created with this new App. I will add these projects soon to the Online Projects.
UPDATE: If you are still experiencing an issue downloading an Online Project, please delete the App from your device and re-install the App from the App Store.