appcenter/apps/ucsschool/version: 4.1 R2 v4 version/erratalevel: 239 version/patchlevel: 3 version/version: 4.1 The UMC module "Passwords (teachers)" only shows users that are teachers. Users that are "teachers and staff" are not shown. There is no obvious way to reset the passwords of these users.
Just tested this again with UCS@school 4.1 R2 v9. Worked like a charm. → WORKSFORME
*** This bug has been marked as a duplicate of bug 42461 ***