# Corona 12 Crash **URL:** \ **Category:** Issues\ **Created:** [July 3, 2024, 6:02pm UTC](https://forums.chaos.com/t/corona-12-crash/158246 "2024-07-03T18:02:15Z")\ **Posts on this page:** 12\ **Page:** 2
**Author:** ![ronaldjung](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@ronaldjung](https://forums.chaos.com/u/ronaldjung)\ **Post date:** [August 15, 2024, 8:14am UTC](https://forums.chaos.com/t/corona-12-crash/158246/21 "2024-08-15T08:14:12Z")
I have a 13900K It seems to be a Intel CPU problem. I tweaked the maximum temperature of the CPU to 85º Celsius and Corona stopped crashing Maybe with 90º would be sufficient, have to try. ---
**Author:** ![gethin\_hooper](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/gethin_hooper/32/276185_2.png) [@gethin\_hooper](https://forums.chaos.com/u/gethin_hooper)\ **Post date:** [August 15, 2024, 10:16pm UTC](https://forums.chaos.com/t/corona-12-crash/158246/22 "2024-08-15T22:16:44Z")
Corona 12 h1 still broken for me had to downgrade again!!! I will wait now until I install windows 24h1. ---
**Author:** ![ucna](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@ucna](https://forums.chaos.com/u/ucna)\ **Post date:** [August 17, 2024, 12:15am UTC](https://forums.chaos.com/t/corona-12-crash/158246/23 "2024-08-17T00:15:32Z")
> [@gmh\_2001](#): > > Corona 12 h1 still broken for me had to downgrade again!!! I will wait now until I install windows 24h1. Same here. I’ve given up and reverted to 11.2, what has windows 24H1 got to do with the installer crashing max? ---
**Author:** ![gethin\_hooper](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/gethin_hooper/32/276185_2.png) [@gethin\_hooper](https://forums.chaos.com/u/gethin_hooper)\ **Post date:** [August 19, 2024, 1:30pm UTC](https://forums.chaos.com/t/corona-12-crash/158246/24 "2024-08-19T13:30:33Z")
It will give me a chance to rebuild 3ds max with a fresh install so I can see where the conflict is coming in. Can’t believe it would be my hardware..3970x…4090..It could be that Corona is fighting with a plugin, driver or env variable..don’t know. Just annoying that it’s so sensitive..Vray Arnold etc work fine! ---
**Author:** ![neilcross](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/neilcross/32/235247_2.png) [@neilcross](https://forums.chaos.com/u/neilcross)\ **Post date:** [August 19, 2024, 10:40pm UTC](https://forums.chaos.com/t/corona-12-crash/158246/25 "2024-08-19T22:40:45Z")
Im noticing crashes running interactive with an object that uses a path deform modifier. If I disable or remove the object using path deform I dont crash. ---
**Author:** ![Shaten](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@Shaten](https://forums.chaos.com/u/Shaten)\ **Post date:** [August 20, 2024, 10:51am UTC](https://forums.chaos.com/t/corona-12-crash/158246/26 "2024-08-20T10:51:10Z")
Hey, had similar issue, when corona 12 either not rendering or crashed in IR render. In my case - in one of the scenes, I had corona scatter with edge trimming enabled on the chaos scatter rollout. And one of the instanced object that was used for scattering had edge trimming map in opacity slot. Even tho it was disabled in material, it still would crash. Once I’ve removed the map - it started to render without the problem. In 2nd scene I as well had chaos scatters, tho I did not had time to check if any of the scatter objects had trimming map, removing chaos scatter for good helped. UPDATE: In 3rd scene, I did not had any scattering at all. The scene crashed as soon as I’ve opened material editor or started IR render ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [August 20, 2024, 2:05pm UTC](https://forums.chaos.com/t/corona-12-crash/158246/27 "2024-08-20T14:05:57Z")
> [@Shaten](#): > > Hey, had similar issue, when corona 12 either not rendering or crashed in IR render. In my case - in one of the scenes, I had corona scatter with edge trimming enabled on the chaos scatter rollout. And one of the instanced object that was used for scattering had edge trimming map in opacity slot. Even tho it was disabled in material, it still would crash. Once I’ve removed the map - it started to render without the problem. > > In 2nd scene I as well had chaos scatters, tho I did not had time to check if any of the scatter objects had trimming map, removing chaos scatter for good helped. > > UPDATE: > > In 3rd scene, I did not had any scattering at all. The scene crashed as soon as I’ve opened material editor or started IR render > [@Neil Cross](#): > > Im noticing crashes running interactive with an object that uses a path deform modifier. If I disable or remove the object using path deform I dont crash. Both of these cases will be worth to investigate, and seems you did great work identifying where the issues may be. Please, if possible, submit the scenes (or trimmed down versions of them) for us to have a look. Thanks. ---
**Author:** ![Shaten](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@Shaten](https://forums.chaos.com/u/Shaten)\ **Post date:** [August 21, 2024, 7:54am UTC](https://forums.chaos.com/t/corona-12-crash/158246/28 "2024-08-21T07:54:29Z")
Stupid question, how and where do I upload the scene? ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [August 21, 2024, 10:01am UTC](https://forums.chaos.com/t/corona-12-crash/158246/29 "2024-08-21T10:01:40Z")
> [@Shaten](#): > > Stupid question, how and where do I upload the scene? You can submit a new ticket at: [https://support.chaos.com/hc/en-us/requests/new](https://support.chaos.com/hc/en-us/requests/new) and attache the scene. You can also specify this forum thread in the ticket to keep better track of things. ---
**Author:** ![Shaten](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@Shaten](https://forums.chaos.com/u/Shaten)\ **Post date:** [August 21, 2024, 2:38pm UTC](https://forums.chaos.com/t/corona-12-crash/158246/30 "2024-08-21T14:38:13Z")
Done! Another thing that I’ve noticed regarding chaos scatter. If I open the scene with scatter present ( edge trimming turned on in the roll out ) and start rendering: If I’m rendering in IR mode, It crashes, In normal render it stucks in parsing mode, with max render windows missing at all. Then, if I turn edge trimming off and on, it will render normally in both modes. ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [August 22, 2024, 10:49am UTC](https://forums.chaos.com/t/corona-12-crash/158246/31 "2024-08-22T10:49:21Z")
> [@Shaten](#): > > Done! > > Another thing that I’ve noticed regarding chaos scatter. If I open the scene with scatter present ( edge trimming turned on in the roll out ) and start rendering: If I’m rendering in IR mode, It crashes, In normal render it stucks in parsing mode, with max render windows missing at all. > > Then, if I turn edge trimming off and on, it will render normally in both modes. This can be yet another very good finding! If that is the case for the scene you have attached, feel free to add that information in the ticket too (if you have not done it yet). Support guys will process it further for QA. Thanks. ---
**Author:** ![ucna](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@ucna](https://forums.chaos.com/u/ucna)\ **Post date:** [August 22, 2024, 10:52am UTC](https://forums.chaos.com/t/corona-12-crash/158246/32 "2024-08-22T10:52:24Z")
> [@ucna](#): > > > [@gmh\_2001](#): > > > > Corona 12 h1 still broken for me had to downgrade again!!! I will wait now until I install windows 24h1. > > Same here. I’ve given up and reverted to 11.2, what has windows 24H1 got to do with the installer crashing max? Just a quick question for you since our issue is typically the same ( Corona 12 crashes max on launch after installing it), do you have Memory Integrity turned on or off under core isolation for windows 11? could it be possible that windows is somehow blocking the .dll file for corona, i once experienced this in some certain older versions of 3dsmax and had to turn that setting off. I haven’t tried reinstalling corona HF1 after disabling this windows setting. All the other suggestions from corona support did not work as well. ![Screenshot 2024-08-22 044739.png](https://europe1.discourse-cdn.com/chaosprd/original/4X/0/d/2/0d2df891ce6751b125727df6170564fb4b824b00.png) [Previous page](https://forums.chaos.com/t/corona-12-crash/158246.md?page=1)