Partially soldered SDIO connector

Hello, my (campaign) MOX doesn’t detect SDIO wifi card.
I noticed the riser adapter card is soldered only on 1 of 6 pins.
Is it supposed to be like that?

There are a lot of posts about SDIO wifi issues, but I haven’t seen any pictures of MOX A underside. Are those pins used? There are a lot of pins (8 + 7) for SDIO.