There is a logic issue with the range check for Unholy Death Knights.
Currently, the logic relies on Death Coil (ID: 47541) to determine if a friendly unit is in range (40 yds).
However, when Army of the Dead (ID: 42650) is active, Death Coil transforms into Necrotic Coil (ID: 1242174) due to Hero Talents/Passives.
During this window, IsSpellInRange(47541, unit) returns nil, causing the range check to report the unit as "Out of Range" even when they are close.
Technical Details:
Class: Death Knight (Unholy)
Trigger Spell: Army of the Dead (42650)
Original Spell: Death Coil (47541)
Morphed Spell: Necrotic Coil (1242174)