Lumia 950 SD card storage allocation

[Windows Central Question]

I have the Lumia 950 with a Sandisk Extreme Pro 32GB microsd HC1 card and its got a weird space allocation. I have pictures and music saved on the card while apps are saved on the device storage but i noticed on the storage usage i have 1.85GB allocated for Apps & games on the card. Looking at the details there's no apps found on the card. What is this space allocated for and how do i free up the space since its not being used for anything i know off.