[game breaking] Runegraft of the Novamark not working correctly

I am testing a new build using the new Dark Pact of Trarthus.
However, there is a specific issue with this skill and the Runegraft of the Novamark.

1. A rare or unique monster gets marked from Mark on Hit + Assassins Mark
2. the marked Monster dies to the Nova Skill causing lethal damage
3. the Mark is transferred to the next enemy in close proximity due to Mark transfer via the Mark Mastery (should apply to Mercenary Lot as well)
4. the Nova Skill still occurs on the same spot as in step 1-2. So basically the Nova is cast upon a corpse, which doesn't have a Mark active.
5. the Runegraft and the Assassins Mark are out of sync.

Watch the video, it explains more than 1000 words: https://youtu.be/EPEAv2W-ePs

Your bug report reference number is 1.581.661.797.