THE PLATFORM: Windows 11 NOMAD APP VERSION: 2.9.29 The problem is described more thoroughly in this post: [image] File becomes permanently laggy when doing any action (using brushes, undo, etc.) Bug Report I have a similar problem that I mentioned in another thread. I’m on Windows 11 and using an XP-Pen drawing tablet. My problem is a little worse. The pen cursor becomes laggy, but so does mouse movement and the whole system in general (opening/closing apps, etc). I have to restart the computer to fix the system lag. I have tested and tried various fixes for weeks. This problem occurs only when using the tablet in Bluetooth mode, and only when using Nomad. I used a performance monitor and noticed… I have had some limited success disabling VSync, it seems to happen less often, but can still happen from time to time. The FPS on my system (just not in Nomad) tanks and I have to restart the computer. Normally the log does not show anything of use, but today the lag started after using Quad Remesher and the log displayed much more info. Thought it might be of some use. On a related note, I’ve noticed in my logs that “Astc LDR” and “Astc HDR” are always set to “No”. Is that something that I need to worry about, or is it common for them to be set to “No”? nomad log.txt (7.6 KB)

Try this! [image] PC/Windows 11 - Random Crashes, GPU Freeze - FIXED! Tips, Tutorials and Help There is a feature in windows 11 called HAGS ( Hardware-Accelerated GPU Scheduling ) This feature make a lot of 3d programs lag and freeze. After i disable it, Nomad never crashed again! Even with millions of pols. Now i can use the app flawlessly. How to disable: Open Settings (press Win + I). Go to System and choose Display. Scroll down and click Graphics. Click Change default graphics settings. Turn off the switch for Hardware-accelerated GPU scheduling. Restart your computer to ap…

Thanks for the reply, will give it a try soon.

This appears to be the exact same issue I’m having: [image] Nomad Sculpt is Crashing PC Bug Report THE PLATFORM: Windows NOMAD APP VERSION: 2.9.3 While using Nomad Some glitch happens and the entire pc gets very laggy. Not slow but its like 1frams per 10 sec. If i click any button in nomad or even any action in pc like pressing the window button to open the start menu will take 30 to 40sec. Even closing nomad is not fixing this and i have to restart the pc. This happened twice and I was not able to replicate the error intentionally. The scene is also not very heavy. I was learning how to u…

Hello, In my case with the problem, It had nothing to do with my graphics card and vsync and my xp pen or wacom tablets. It also shows on my Log that it was fine regardless of the lag and problem. In my case, forcing a force update on windows worked. Although your system in windows may say it is up to date, there are certain updates that are not installed or your pc may be missing some windows redistribution files. If I may suggest, either do a system restore to when your Nomad sculpt worked fine (if you had system restor enabled on PC). If that does not help, try installing missing windows redistribution files (most likely start 2010 or 2012 Visual C++ redistributions). That may also help other software problems in windows beside the lag/freeze in nomad. Worst but not the worst is do a system reset. It takes a white but there is an option to keep all your files and installed apps. It just reinstalles your operating system. I hope this helps.

Thanks for getting back! I doubt it’s C++ redistributions for me, I have 12 of them ranging from 2008-2022, most of them installed from various games through the years. I just recently updated From Windows 10 a couple of months ago. Maybe a system reset might help, it’s been awhile since I did one. Anyway, I just noticed that Windows 11 has an update history. Can you look at the updates you did around the time you fixed the issue and let me know what they are? I can look into them, see what they are, and if my system is missing any of them.

Maybe try disabling Wintab? [image]

Thanks, but that was one of the first things I did. The only thing that seems to help so far is disabling VSync, doing that seems to make the problem occur much less.

What does your scene look like, in term of vram usage? Because “it doesn’t happen on other app” isn’t pertinent if Nomad is the only app where you potentially fill vram.

I need to trigger the system lag again and hopefully get a good screenshot on my performance monitor right when it happens. For now these two screenshots show what performance is like during a couple of scenarios. One shows performance while radial sculpting (set to 12) on a 7 million poly mesh, so I expected the FPS to drop a bit (on a 144Hz monitor). The other shows performance when temporary lag hits and it drops to 5 FPS. When the system wide lag starts, it’s like the temporary lag values get applied to the whole PC (desktop and all) until a restart. Did my .txt log I attached in the above post show anything helpful? [nomad - radial sculpting] [nomad - temporary lag]

Metric Baseline Range High-Poly Sculpting Temporary Lag Change GPU Clock (MHz) 1530–1626 1991 1531 ↓ 460 MHz GPU Load (%) 11–30 50 9 ↓ 41% GPU Power Draw (W) 37–44 58 36 ↓ 1–8 W vs. baseline GPU Temp (°C) 54–68 54 53 Stable CPU Temp (°C) 59–68 76 79 ↑ 11–20°C CPU Usage (%) 22–47 31 37 ↑ 6% GPU VRAM (MB) 928–1283 1744 1782 ↑ 461–854 MB FPS 135–144 73 5 ↓ 130–139 FPS Don’t know how helpful this will be, but had Claude make this table based on 5 different performance screenshots. Baseline is when Idle in Nomad or doing simple stuff on simple models, which is why it shows a range. Like I said though, have yet to get a screenshot when the system lag starts, hopefully soon.

System wide lag (Nomad log included)

Bug Report

ldee August 26, 2026, 1:16pm 2

Try this!

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System wide lag (Nomad log included)

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