I want to tell you my experience…
I initially had the same Problem with my X32 Core. The Utrack X32 was Not recognized the X-USB card worked just fine.
This fixed the problem for me:
1. Insert the card without the mounting plate. The card was recognized now.!
2. After that mount the plate to the card and fasten all screws.
So the problem ist the mounting plate that doesn’t properly fit the X32 Core card slot.
After this procedure everything ist working fine now.