I link HMH through Canvas. Students are required to "...load (HMH) in new window" to access activity. Most students have no issues accessing activity by loading in a new window. Recently, a couple students were taken back into Canvas after attempting to "...load (HMH) in new window." I have had the students reload Canvas, log out, log back in, resend Canvas invitation to class, reassign class in HMH, and nothing has fixed the issue. It is always with the same couple of students who are fairly new. All others continue to have no issues accessing HMH through Canvas.