Bullet Dance missing

[Reedkage]

I am pretty sure I had one, and also it was equipped to my redeemer prime, but all of a sudden I found my Bullet Dance stance mod missing. I am 100% sure I had two copies, 1 I traded to my friend which I am sure was my unranked one, while I kept the fully ranked on. When I went to swap out some mods on my Redeemer Prime, i found the stance empty and missing.

[Vahenir]

Did you per chance remove something from the trade window during the trade? I did that before and it randomly auto slotted the ranked version of another mod i was trying to trade alongside it. Had to remove everything and slot stuff from the start to prevent that because slotting some stuff, then removing and going back into the inventory seems to fill any empty slots on the left with duplicate stuff.