Sorry I didn't write down the ticket number, but I've found that yesterday, when I tried to trade in a spare Common Borg Shield for some Dilithium, it instead used my spare EDCs instead. Since I thought it just didn't work, since the Borg Shield was in my inventory, I picked the Borg Shield option to convert again... and once more... it didn't disappear.
1 more time, and it FINALLY disappears. And then I had 2048 more Dilithium than I thought, because the conversion had grabbed 10 EDCs and converted them instead into Dilithium. Now I can't buy the stuff I was going to with the 20 EDCs I lost.
I didn't realize this happened to me on a previous Toon I had this same thing occur, where I lost EDCs even though I'd selected to convert Common Borg gear into Dilithium instead.
Yes, I had selected the Common Borg Shield option. I actually selected it multiple times, since it didn't seem to do anything when I tried to exchange it.
So yeah, it converted my EDCs and only after it had gone through them in sets of 10, would it convert the Borg Shield.
I was saving those EDCs for some Omega set items, so I was pretty sure I selected what I did. A GM could test it on their own, or someone. It's annoying, and this is the second time I've had it happen to me. So it's gotta be a bug.