We created a Generico element that we add to a block on the dashboard that shows students courses they are enrolled that are not available to them. Since we rolled it out, support calls about "missing classes" have gone down by about 90%
You can see this demo'd here: https://app.vidgrid.com/view/pO7n6CjHWt2A
I will attach our Generico bundle in case you want to try it on your end.