So, the new update last night brought a vast amount of fixes and quality-of-life changes.
It also brought a lot of bugs, too.
If you buy forma in any mod screen, you have a new option to buy the 3 forma pack. I selected that option and hit yes, and the purchase was successful.
I was then greeted by a box, saying that I had not installed the forma, and had asked if i wanted to. I hit yes.
A forma was used, and it unranked my Akmagnus and didn't add a polarity to any of the slots.
This is a warning: do NOT buy the 3 forma pack in the arsenal, and then use one.