An unexpected change in functionality experienced on Instagram yesterday has caused an issue on our app’s login screen.
The login screen doesn’t show up from the second time onward, so you are unable to add multiple accounts.
We have already submitted a new version that resolves this issue to Apple. We believe that you will be able to download this version from the App Store in approximately one week.
We apologize for the inconvenience and kindly ask that you wait until the new version is available for download.