Party play - disconnect due to kill with flameblast on Infernalist

Hello,

We found a bug where a party member is getting disconnected when flameblast kill a monster from the other party member at a certain distance.
It is a reproductible bug.

Setup:
- at least 2 party members, one is an infernalist, the other doesn't matter
- be at least 3+ screen range

Step:
- Infernalist need to kill a monster with the spell Flameblast

Bug:
- the other party member (the non Infernalist one) got disconnected

Still in the game, happens to me with 3 different players (Party size doesn't matter, it disconnects anyone who's too far away)
It seems it only disconnects the other players when I use flameblast on a solar orb, regular cast on myself seems to work fine