Vazilok Reapers Ignore Players

[gromartwo]

I have played several missions on different characters where some vazilok reapers cannot detect players and stand there until defeated while a nearby Mortificator attacks. Yet in different groups reapers combined with zombies will attack.

henry peter wong - defeat sterilizer - maps/Missions/Sewers/Sewers_60/Sewers_60_Layout_01_02.txt
Different contact and mission (different player) - maps/Missions/Sewers/Sewers_60/Sewers_60_Layout_03_02.txt

The second example was from last night. The issue happened three times - even in rooms with other groups. Groups with a mix of zombies and reapers (and morts) would detect my unstealthed toon and attack or attack after I attacked. In spawns with only 2 reapers and 1 mort only the mort would attack and charge if needed. The two reapers would drop their bodies and stand looking around even if attacked. I defeated two only using brawl and wasn't attacked at all.