[BUG REPORT] "Buffer Underflow" crash affecting all party members during Abyss Overrun map

Description:
Our entire party experienced a “Buffer Underflow” crash during the Abyss Overrun map encounter.
All players were disconnected simultaneously with the same error popup (“Buffer Underflow”) followed by an immediate crash to desktop.

This issue happened multiple times in the same map type, suggesting a memory or asset loading issue related to Abyss Overrun encounters.

Steps to Reproduce:

Form a party (2–4 players).

Enter a map that has an Abyss Overrun modifier or encounter.

Play for a few minutes until Abyss monsters or cracks spawn.

The game freezes and crashes for all party members with the “Buffer Underflow” message.

It appears to cause synchronized Buffer Underflow crashes affecting all party members, even across unrelated groups via TFT

https://pic.in.th/image/wTalS3