Exactly what it says on the tin: in previous games, if you died while throwing a grenade a live grenade would drop on your body. I’ve never seen this happen in Infinite, to myself or anyone else. Is this feature still there, and if not, are there any plans to add it?
Nope, all you games should be recorded and found under My Profile then Match history. If you go back and re-watch the match you’ll notice the grenade disappears if you die while its in mid air. Not sure if this is intended or not.
Definitely a bug. But it doesn’t affect the shop, so it’s very low priority for sure.