Snake, Vampire Bat and Exemplar appeared on Mission Rewards (bug?)

I was playing Shadow Lords and trying to get every character dossier’s unlocked and after I successful played the mission it randomly appeared.

Yeah that happened to me pre-launch. Not sure why, just roll with it lol

In my case during early access I got I think Epic Snakes and it was not a bug, what it happened to me yesterday is that I “got” an Epic Tier “Shadow Lord” relic (during a normal mission) but it did not add on my relic stock (I currently have 4, 2 for my recent Challenging mode and 2 for my failed run on Godlike as part of the Final Results reward).