MrMessy Yeah - apologies, we deployed a fix (to server functions) for some other IOG functionality where users would unplug and charging would need to be stopped (as part of release 809), but need to exclude default IOG window for this and only apply when we're outside of the default IOG window.
For now, temporarily a regular charge schedule should do.
Fix will be ready for tomorrow...errr...today.
UPDATE: Fixed per Release 813.