However, we're running two sections of the course. The Blackboard IT guy says that he setup LTI to be a global tool link, so it should work from other 'courses' inside Blackboard, so we just copied the same LTI tool link over to the second section of the course. Students get directed fine, appear to be logged in directly ok (and show up in the Course List), but cannot access the assignment.
Universally, they receive the following error. They can click around in the WW interface, and go to the general Homework Sets spot, but cannot click on the first assignment - it shows up, it's assigned to them, but it's not clickable.
The selected problem set (2019FA-Assign01) is not a valid set for [USER_NAME]:
Any thoughts? I'm at the point where I'm going to have one or two of these students come into my office and do it on a) another system (mine); and b) with the debug parameters enabled briefly, so I can try to see what's going on. We're in production now, though, so I don't want to mess with too much as we have hundreds of students successfully using the system.