Customized learning material to improve your skills - not showing up at end of the practice test

I have done 2x practice tests of MD-102: Endpoint Administrator over the last month. The first one I thought I just didn't save it right but it has done it again.

When you click on "Save your customized collection" there is 0 items in there. I remember with the other times I took it last year or early this year, it gave you the items you needed to work on. Now its offering nothing.

Is something bugged or it doesn't give you this list anymore?