Sound causes crashes

[Ixalor]

I am playing grunts mod (downloaded 2 days ago) as of this post. I was able to play through the first map as atredies but when I completed the 2nd map, the game loops the sound that I completed the mission but the "mission completed' never popped up.  

I tried different video settings - resolutions etc.  Nothing worked.  I disabled sound in the settings and mission completed.  This tells me something about accessing the sounds is the problem.

Has anyone run into this before?  Grateful for any assistance.  I dont want to play without sound 😕

windows 11

Thank you,

Ix