Our server is on Moodle 2.3.4+.

Our course is set to separate groups and I have a non-editing teacher who is a member of two groups. She is trying to check the course logs, however there is no groups selector and under the all participants drop-down there are only participants listed for one of the groups she is in.

This means that she cannot see the logs of any of the students in the second group.

This looks like a bug to me.