“I still get the same problem I received all the way through the beta in that none of my lists will sync so I lose everything I add.
When using the web app first the titlebar shows welcome in German briefly and then I start trying to add some tasks and then get the following error:
"Internal testing error
Sorry, it looks like your to-do items aren't being synced at the moment. Send us a report to help us fix the issue."
If I send a report all that happens is it wants to send an email to the team but it does not contain any info or attachments so I am unsure if this helps.
Also if a search the iOS store for "Microsoft To-Do" I just get a different app made by someone else and like others I cannot turn this on in my Office 365 settings unless I am not looking in the right place.