Syndicate Safehouse: One reward chest that was empty?

Hi,

I did a syndicate safehouse and after I killed the leader, I did open the different chests.

The last chest had nothing in it. I did check everything again without my loot filter but there was nothing :D

The bug reference number is 2.570.418.243

was it an it that fled in research chest?

if so it doesnt contain loot but it gives a craft on map device.