I also have the same problem with iOS 17. I have a TextField bound to an ObservedObject. If you then enter a comma (in Germany), the system deletes it again. Sometimes you can't edit the value itself. Strangely enough, sometimes it works all of a sudden, but usually it doesn't work.
gerritm
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Looks like iOS 17.1 and 17.2 don't fix the issue either :-(