Hey folks!
Great that the bug has been noticed.
@RhythmScript - I just had the same project on 4.14 and 4.18 and thats the reason I mentioned about 4.14 
I think that other version can work as you mention but just to be safe I wrote about 4.14 just to be safe that Epic staff can reproduce the bug. So, I may work on higher projects but personaly I didn`t test it.
One additional thing is that I have even checked the version of SwarmAgent and they are exactly the same. Maybe someone forgot to update the numerations on SwarmAgent ? ;D