Choas cultists number off during game

[emberborja]

all I did was drag cultist from the bag into the combat area as part of a card effect. When combat was over had to drag the unit onto the board. IDK if the issue is from end of battle button, dropping unit into the void, hitting the kill button, or loading a game file, but at some point I had like 11 cultist for some reason.

[emberborja]

i just dropped two into the void after a combat and the number went from 8 to 12 in the cultist bag