The following message get printed the first time the keyboard is shown, at every app launch. This has shown up ever since iOS 10 came out.
[MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
[MC] Reading from public effective user settings.
Other people with the same results claim this to be linked to privacy settings, for camera and photo access. Can't really figure out what is going on here on my own, would be great if anyone knows what is causing this.