I just tried to do this on Fusion (which sucks BTW) and logging into the Apex directly. I'm unable to delete from Fusion, but did it through the Apex site. Fusion shows I have three spaces. the EB8, Display and EMPTY when I have the display plugged in, with the display showing as "disconnected" and unable to do anything from Fusion. If I click on the EMPTY module, it says there is a module issue and to select delete from the menu and save, but that doesn't do anything even though it says it was a success. EMPTY is still an option and the display still shows as "disconnected" and I can't make any selections. If I go back to the Apex site, I can delete the display and then Fusion only says the EB8 and the EMPTY module is showing. The Apex site does not show this EMPTY module, only the EB8 so I'm not sure where to go from here.