As I experienced that, After group override in the Assignment activity, It's time and date reflects for that group but it not showing the correct at teacher site. please see the screenshots.
1. After Overriding
2. It shows correct for group B1, as it was overridden first.
3. Now it is not showing correctly for B2. same for B1 is reflected here.
3. Now it is not showing correctly for B3. same for B1 is reflected here.
but for students, it shows the correct date as per the group override dates, but when the teacher selects the group only participants shows correctly. Due dates and Time remaining not showing correctly. is there any solution to reflect the same here.
Event reminders are emailed to all the participants in the course instead of that particular batch.