I was finally in the area and decided to do the control point to get the above exotic item for the quest line. Well it dropped, but I can't loot it. Everything else that was in the box with it was picked up without an issue.
A quick search indicates this was an issue 2 years ago. The optimised in me would like to think Ubisoft fixed it. The realist in me though has slightly more pessimistic thoughts - like they just didn't bother.
Anyone had the issue recently, or know of a fix. This is the second time through for me so it's not a 1 off occurrence.