Loadout trade up - can't use repeat cards

[AssortedStuff]

Loadouts- if you have several repeated cards you can only use 1 per trade up.
Example below: I had 3 of the same card, but the game was only allowing me to use 1. It should have been possible to use all the 3 in that trade up.

[poiuasd]

I did a trade up just today with duplicate cards. It seems trying to add them onto the trade by doubleclicking is a bit buggy with duplicates but dragging should work.