IES instance crash when changing settings

[sami_tawil]

Hello,

As the title says, when i am previewing (vfb) my scene, if i change any settings on the light or on my light rig (rotation) houdini completely crashes
.Even entering in my subnet light rig while previewing, crashes houdini
I also noticed that IES in brute force dont emit GI, only in LC

EDIT: it seems IES in BF do not contribute in secondary rays as well (the light doesnt transport thru glass
-Crash happens with any kind of light
-I need to enable caustics(ROP>>caustics, affect shadow is disabled on glass mat) for light to affect glass, which i dont remember having to do in other projects
-I notice that light goes thru the glass, but i need to crank up the intensity which burns everything else

Is there any solution?

Thank you

[sami_tawil]

depending on the ies intensity is get these results in brute force GI

[sami_tawil]

I was given a broken IES file.....

[philip kelly]

Can I ask , are you using Houdini for visualisation?
How do you find it?
Thank you