Bazur (atlas boss) causes client crash when summoned as extra boss

Doing silo runs with destructive play + shrine atlas boss setup.

Whenever Bazur (big brute who does blue aoe slams and zooms around with his grapple) appears, if he casts his grapple from off-screen and flies towards me, it will crash my client. There is no error, the game just freezes and has to be crash closed.

It happened three times so far, all three times as soon as he "zoomed" past me with his grapple.