I am getting consistent freezes of the application forcing me to exit the application through the task manager.
I am able to win+tab out of the software and save the file via hotkey (UI crashes).

It happens every few minutes, even with simple scenes. I didnt have any such issues with v3 and HUGE data sets.

Can anyone provide any solutions?

Tech specs
Threadripper 3970
Win 10
Geforce 3090 + Titan X
256 GB Ram

Hi 2byts, sorry MoI v4 is not working well on your system. It's most likely some problem with the video driver so it would be a good idea to update to the latest driver to start with.

There are a couple of settings in moi.ini you can try adjusting to see if it makes any difference -

DisplayThreadLimit=1

and

StaticBufferMaxVRAMToUseMB=0

also you can test setting

GraphicsAPI=OpenGL


Another thing is when you go to close it with Task Manager, right click on it and choose "Create dump file" to see if you can get a crash dump file created and then send that to me at moi@moi3d.com , that might help me to get some information on what is happening.

- Michael

I applied the setting you recommended as well, but still getting crashes

Hi 2byts, so the crash dump seems to be waiting in a normal event loop.

One odd thing is it appears that the display driver (nvwgf2umx.dll) has created 100 threads in the MoI process which is kind of a lot.

There are also threads created by DiscordHook64.dll and Wacom_Tablet.dll . I'm a little suspicious about the DiscordHook64.dll piece, I see a mention here where it was causing a problem:
https://us.forums.blizzard.com/en/heroes/t/game-crashed-on-startup-after-46-0-patch/21920

Does it help if you disable that Discord overlay widget that is injecting itself into the MoI process?
https://support.discord.com/hc/en-us/articles/217659737-Games-Overlay-101

Are there any other game overlay or hooking type apps that you might have active?

Thanks,
- Michael

Interesting....I use discord for a lot of streaming, and communications to clients, and it is "always on" for this sake....I will test with turning off the overlay mode.

I am also using Slack, Whatsapp, and Signal. Home office requires online communications unfortunately. I still have v3 installed....which is stable.

Hi 2byts, did turning off the overlay mode have any result?

- Michael

https://www.dropbox.com/s/pl12zrxz8nx831q/MoI%20%283%29.rar?dl=0


It did not, I turned off all applications during the modeling process and its still crashing. v3 does not crash.

I noiticed it is likely to happen during viewport changes.

GTX 3090 "PLUS" Titan X????

Maybe go into the driver settings and on program tab, add MoI as a program and set the master GPU as the one to use...

Hi 2byts, that's a bummer I thought that was going to be the culprit.

Are you running any other software that might hook itself into running programs at a low level like anti-virus/anti-malware type stuff?

Did you check if there was a newer video driver available?

About the last thing I can think to try is if you send me an e-mail (moi@moi3d.com), I can send you a version that has a Direct3D9 renderer enabled. One of the differences between MoI v3 and v4 is that MoI v3 used Direct3D9 while MoI v4 uses Direct3D11. I have a version of v4 that I can send to you that can use Direct3D9 instead if the drivers for that are more stable on your system for some reason.

- Michael

Thanx Burrman, I will give that a go, and may even just remove the Titan to see if it helps.

Michael, I am not sure what would classify as a "hook" these days. Win10 is a minefield of system notifications and popups. I tried to quit any background applications while modelling, and that was the Crash Dump i sent you in the previous reply.

The only anti-virus/malware apps running are the vanilla Win 10 apps, and cloud services like Dropbox, GoogleSync, OneDrive. Its a new system, built from scratch just a few months ago.

The crashes can take up to 20 min before they occur, which is why I am having a hard time pinning what triggers it.


I am using one of the dark skin themes , would that make it unstable?

Hi 2byts,

re:
> I tried to quit any background applications while modelling, and that was the Crash Dump i sent you in the previous reply.

Yes it doesn't have DiscordHook64.dll loaded anymore in that crash dump so that should rule that out.


> I am using one of the dark skin themes , would that make it unstable?

Unlikely.

- Michael

re:

> The crashes can take up to 20 min before they occur, which is why I am
> having a hard time pinning what triggers it.

What are your system thermals like, do they keep climbing over the 20 minutes of activity?

You can keep track with HWMonitor from CPUID.

- Michael

I am watching the temps as use Moi3d.

Right now I am doing stress test, with rendering a heavy scene in Redshift using the 3090, while modeling in Moi3d using the TitanX in open gl. I just discovered I can right mouse on an application and choose the which GPU to use in Open GL.

CPU temps running a flat 60 Celsius with a 30C ambient temp, and fans running on MAX.

Still freezing up, I might get a few degrees spike ....but nothing suspicious.

I have Moi installed on the network, in a dropbox folder. Would this interfere?

Hi 2byts, well it sounds like thermals are not the issue that was worth a check.

re:
> I have Moi installed on the network, in a dropbox folder. Would this interfere?

Probably not.

Can you please generate a crash dump from v3 so I can see if it has the same huge amount of threads created in it by the video driver as is happening to v4?

- Michael

Hi 2byts, I was looking over the crash dump info a little more and I noticed another possible hooking thing: NahimicOSD.dll .

It seems to be part of your audio driver which has several DLLs loaded but the "OSD" part of that one probably means on-screen display so it's another possible source of interference and has also caused crashes in other apps previously too:
https://support.microsoft.com/en-us/topic/office-applications-crash-due-to-nahimic-audio-driver-1a7cdd29-5c89-4579-9043-faa97120ff92
https://github.com/visualboyadvance-m/visualboyadvance-m/issues/623

If you can figure out a way to turn off that piece as well that might be worth a try.

It's a little strange that the audio driver has something that hooks into the video driver display code but that is what it appears to do.

- Michael

It looks like you might be able to find a Nahimic service running which you could disable in Win+R services.msc .

Kind of sounds pretty close to what you are describing:
https://answers.microsoft.com/en-us/windows/forum/windows_10-other_settings/nahimic-audio-issues/7c10e6ec-01bb-49ea-ba21-a93e037dca81



So definitely worth a try disabling that.

- Michael

Is it an MSI motherboard?

Some more info:
https://dovidenko.com/2021/1233/nahimic-uninstalling-blocking-msi-bloatware.html

- Michael