Interactive rendering slows down.

[Quest]

Any update?

Another new build win 23h2, 9950x, 64 gb ram, expo off. No lags or frezzes

I have big feel that main problem is in windows 24h2. They did something that boost games and not redner)

What exactly do you mean by "another new build"?

6th PC with 9950 Ryzen.

[maru]

Oh, ok, I thought you mean Corona build or Windows build. Thanks for clarifying.

[maru]

Is there anyone with this problem using other CPU than 9950X?

[skogskalle]

Ok Im back...

Just got the computer back with better cooling and now it stays around 85-87 degrees, but it still freezes during rendering!  Before it seemed to only freeze/stutter when reaching around 95 degrees but now it freezes at lower temps.  Impossible to work in any other program during normal rendering, and when I tried interactive rendering it froze so bad I had to close max from the task manager.

I just tried the corona benchmark again.  Ran it 3 times (just pushing "restart") and it gave me 3 differens scores. First time 13 500 000, second 12 500 000 and third 14 400 000.  The first two are too low, and i really dont see why it gives different results. No other major programs open at the time and no changes between the three runs.

Not using EXPO for the ram.  I have 4x32 GB running at 3600 MT/s.  Im on win 11 24H2.  9950x (not overclocked).  Corona 12 update1 hotfix1

What is going on??

Im willing to try to roll back to win11 23h2 and see if it works better. Is it possible to roll back without having to reinstall everything on the computer?   

[Quest]

The last option that left to test its roll back from 24h2 to 23h2. At this moment I have tests from new 8 PC with 9950, different ram, motherboards, and AIO all of them expect 1 with 24h2

This bug fist time we get with version Windows 11 Pro 24H2 26100.2033 and newer, and there was no bug on Windows 11 Pro 24H2 26100.1742 and seems 23H2 any version.
When it was only with one PC there was no point for alarm, but now with 8th PC its a clear problem

Freezing occurs under certain circumstances.

So problem not it motherboards/ram or overcloking ram/cpu, or even temps. We try differect bios update awell!
Seems left only few options windows, corona and amd chipset drivers (last one most likely not but...)

Atm I cant give more test couse no time reinstall withdows on all PC. But the last one with 23h3 no frezzes on corona 12.1 (didnt test yet 12.1 hf 1)   

p.s but there strange thing on one PC if turn off EXPO, there no such a problem with corona 12.1 and if install corona 12.1.1 its totaly frezz PC no metter EXPO on or OFF.
So stepback to "Freezing occurs under certain circumstances."

[Naxos]

My 2 cents :

Went back to Corona 12 hf 1 : behaviour is a lot better than 13 daily build.

So, as i've updated BIOS, let EXPO ON, changed to Corona 12 hf 1, i d'ont really know what makes it better, but something did.

[Naxos]

MMMh... half bad news :
Now that my scenes are set with Corona 12 UP 1 HF 1, i can't open them on friend's PC as 3dsmax crashes directly : she has Corona 12 HF 1 (not Update1)

I'll have to wait until she comes back to install new one (i do have access to PC for convinience, but not admin for install)

Is there anyway to set the scene "openable" on Corona 12 hf1 ? I don't know, some hidden magic parameter to save as older version, like 3dsmax does ?

Really urgent as i need to render animation for monday.

[romullus]

It's likely due to Corona camera. If you can open your scene in UP1 and delete all the Corona cameras, it might start loading in HF1 without crashing.

[Naxos]

It's likely due to Corona camera. If you can open your scene in UP1 and delete all the Corona cameras, it might start loading in HF1 without crashing.

Ok, this is a good workaround... I'll have to recreate cams and their animation, but it let me render with 3 PC instead of 1, many thanks !

[Naxos]

It's likely due to Corona camera. If you can open your scene in UP1 and delete all the Corona cameras, it might start loading in HF1 without crashing.

Do you think Physical cameras will solve the problem ? It is easier to create new PhyCams within the main scene, then remove coronaCams than add them from scratch

[romullus]

Do you think Physical cameras will solve the problem ? It is easier to create new PhyCams within the main scene, then remove coronaCams than add them from scratch

Yes, physical cams should be good. As long as there are no Corona cameras in the scene, it should open in HF1.

[Naxos]

Do you think Physical cameras will solve the problem ? It is easier to create new PhyCams within the main scene, then remove coronaCams than add them from scratch

Yes, physical cams should be good. As long as there are no Corona cameras in the scene, it should open in HF1.

Cool, thanx !

[skogskalle]

Hey Corona team - have you been able to reproduce the freezing/stuttering on 9950x and win11 24h2?
My new workstation is just a very expensive pile of rubbish until this gets fixed :( Would be great if you could look into this and figure out if the problem is in coronas code or in Windows. Or whatever else might be causing the issue.

[Quest]

Hey Corona team - have you been able to reproduce the freezing/stuttering on 9950x and win11 24h2?
My new workstation is just a very expensive pile of rubbish until this gets fixed :( Would be great if you could look into this and figure out if the problem is in coronas code or in Windows. Or whatever else might be causing the issue.

Hey i've join to this request, unfortunately have no time atm to reinstall windows.

There few main options left or its problem with Windows 24h2 or its problem in Corona or bouth)

[skogskalle]

Corona team?

I just bought a month license for Vray to check if it also freezes. I think the load on the cpu would be about as maxed out using vray as using corona?

Vray has no problems with freezing, and I can use photoshop freely at the same time.  I made a scene with only two simple materials (basic white wall and glass) and no textures, and tried it in both corona and Vray.  Corona freezes and stutters, vray does not.  Both push the cpu to about 88 degrees.

Most of the time corona freezes I can still move the cursor, but cant click anything. Sometimes the cursor also freezes in place.

So to recap.  Latest windows 24h2, 3dsmax 2024, corona 12 update1 hotfix1, motherboard msi mag b650 tomahawk, 4x32 gb ram running 3600 MT/s no expo, Ryzen 9 9950x no overclocking.

I can also run cpu stresstests like OCCT that push the cpu to its max without problems.  But rendering or using interactive render in corona breaks my computer completely.

Do you need more info from me - ask. I very much want this issue solved asap.