Problem with Four Horsemen-Perk (Nintendo Switch)

I used the „Four Horsemen“-Perk since some days to play an apocalypse necromancer in Siralim Ultimate on my Nintendo Switch- Casting an damage seem to work accordingly but the healing aspect seems to be broken?

Healing is always 0.

After asking people in the discord channel I get to know that it’s a known issue(?) but I don’t know whether it is reported or not