Just a quick update. I flashed eMIUI D2EXT X-PART 1.2.4 and I'm getting the same result with the UID message. Went back further to 1.1.28 A2SD and I no longer get the UID message. Very strange. Maybe it's related in some way to D2EXT? I also never got this issue with D2W.
I will try the 1.2.11 A2SD ROM alter and let you know the result.
Also try this, After install x-part, flash the activator in the add-ons.
How many partitions do you have?