SIMS - block group membership errors

[SteveRichards]

Hi,

I have some students in SIMS who have moved sides in their base band from "X" to "Y" and vice versa in certain year groups.

 

When I look at the membership in certain blocks, say 11X English, I can still see the students who moved from X to Y. I've removed all their memberships in this group but their names are still being shown (even though they are not assigned to any classes in that block)

Is there any way of permanently removing them these blocks so that their names do not show up at all anymore?

Thanks.