Bug in trade quantity slider

[kayahr]

Hello,

I found another bug in one of the starter missions in the DeVries system, but I guess this is a general error in all trades and it just is much more obvious in this mission because of the large discount (40%).

I mean the mission with the blue smurf lady who wants to give me a terran shield generator as reward for me defending her station.

I went to the guy the mission guidance was leading me to and began trading for shields. There I can buy some Mark 2 shields. Because of the discount of 40% the shields cost less then 70,000 credits. I have 78,000 credits. But I'm not able to buy the shields because the quantity slider can't be moved.

I was able to fix it by selling some missiles so I have more than 100,000 Credits. The slider worked then.

I guess the bug here is that the calculation of the quantity I'm able to buy is calculated WITHOUT the discount. So maybe the shield costs 100,000 Cr without the discount and that's why the slider isn't working when I only have 78,000 Cr.

By the way: There is another bug in the same mission: When I buy a new shield then Yisha asks me later if I really don't want the upgrade. I've seen a Let's Play on Youtube where the Let's-Player didn't understand how to buy a shield and SOLD one of his existing shields instead. But he got a positive response from Yisha about the shiny new shield. Looks like the logic is inverted here.