For the last few week,s well since the big fat update. The poison from the diffrent cards have been bugged for me. As the old tooltip said:

If two poisons overlap then the strongest will tick, while the weaker do not stack. but if one of the poisons run out of ticks, then the other continues, then the remaining one will continue doing dmg until it's duration is over... this does not seem to be the case anymore.

If i shoot a marine craig and hit a card, then throw out a poison spell. then when the marine craig poison is over. the poison spell will stop doing dmg aswell, but the card hit will still show as purple.... but dod no dmg...

Not only that. but quite often now, alien clyde or other poisons spells wil lhit a card, and it will do no dmg at all from the get go. just make the card tturn purple and do no damage!

in legendary top hundred area where i am now, such bugs costs you the victory, and gives you a loss. it starts getting super annoying.