I am aware of the fix the imbument aspects procing of non-imbued skills that were added in 1.1.1, but Icy Alchemist (and most likely toxic too, but havn’t tested it) does not proc at all anymore when you try to trigger it using the effect from the Malignant Heart of the Vile Apothecary. They will still trigger when actually using the shadow imbue skill.
I do not belive this to be intended behaviour as other Lucky Hit abilities such as Enhanced Cold Imbument, Blended Cold Imbument and Mixed Poison Imbument still trigger and they all share the same text as the Alchemist aspects “Cold/Poison/Shadow Imbued Skills have up to a X% chance to…”
This might have been a issue from before 1.1.1 but was just triggering before due to the previous bug, but as it is now the Vile Apothecary heart is mostly useless and we sit with the choice between using Barber, Barber, Barber or Barber which isn’t great for build variety.