Has something changed in EF's ability to show upgrade availability on Emirates? I'm sure it used to work pretty well but I was searching yesterday for upgrades from Economy to Business on MAN-DXB and BHX-DXB in late Jan/ early Feb and literally couldn't find a single seat in fare class D (Saver award and upgrade), although there were plenty in class O (Flex award). But when I went to the Emirates website and put in a few of the same dates and routes I could find upgrade availability there, which I was able to book.

Has the EF system stopped working properly? Or am I seeing extra availability on the Emirates website because I'm logged in as a Gold member? Is there a better method of finding these upgrade seats?

Thanks!