Bug Reports

When I change the channel output format with OutputInstance::overrideFormat(), the rendering fails with an assert when executing Renderer::run(); then the program stops with a Memory Access Violation.The assert is:```Program: substance_sse2_blend.dllFile: C:\j\workspace\engine\framework-pip...\maindet...eimplc.cLine: 537Expression: cnIndex<thisObj->mCNRenders.mCNCount```It is very easy to reproduce because the tutorial 8 “peroutputformat” also produces this exception.This problem occurs with Substance 3D Materials SDK 9.4.3 on Windows x64.

Just got an email from Google Play that my app that uses Substance 3D plugin for Unity contains an .so file that is not 16KB-aligned, and I tracked the issue down to Substance 3D v3.12 Unity plugin's Arm64/libsbsario.so. So could we have an update, please? 🙂

I can't get the Integration Tools to install. When clicking on the Install from disk button i get this error on the screen and in the console: Error: Python: RuntimeError: could not create instance of SUBSTANCE_OT_install_tools to call callback function 'invoke' No window appears to locate the file. I'm on Windows 23H2, verified WMIC is installed and the PATH is set in the system variables. Was running Python 3.12, upgraded to 3.13 with the same error. Uninstalled Blender, rebooted, reinstalled, no change. No sure what else to do.

When using the Substance 3D Plugin for Blender, certain SBSAR materials (for example, flower_pattern_wallpaper.sbsar) produce inverted colors on the Base Color output.The Diffuse output shows the correct color, but it is not connected by default in the generated material node tree — only the Base Color map is used, which results in visibly incorrect (color-inverted) shading in Blender’s viewport and renders.Additional Notes:Tested in Blender 4.4 and 4.5 with Substance Plugin 2.3.0 on Windows 11.The issue seems to occur only on some materials (so far confirmed with flower_pattern_wallpaper).Manual workaround: replacing the Base Color connection with the Diffuse map fixes the issue temporarily. 

Hello, I'm using Blender 5.0, and it seems the Substance plugin version 3.0 doesn't support Blender 5.0. The load button is grayed out, and the installation process is error-free. Could you please add me to the pre-release version program? I'd like to try out an experimental version to see if it works. My email is woaicaomeng@gmail.com

Trying to install the Substance3DIntegrationTools-3.0.0-Windows.zip both in blender 4.5 and blender 5 Python: Traceback (most recent call last):File "C:\Program Files\Blender Foundation\Blender 4.5\4.5\python\Lib\subprocess.py", line 1026, in __init__self._execute_child(args, executable, preexec_fn, close_fds,File "C:\Program Files\Blender Foundation\Blender 4.5\4.5\python\Lib\subprocess.py", line 1538, in _execute_childhp, ht, pid, tid = _winapi.CreateProcess(executable, args,^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^FileNotFoundError: [WinError 2] The system cannot find the file specified Help ? or bug? Thank you

When i try to load a .sbsar file inside Blender i get the following error:Python: Traceback (most recent call last): File "/Users/jan_thoma/Library/Application Support/Blender/5.0/scripts/addons/Substance3DInBlender/ui/outputs.py", line 45, in draw _selected_graph = _selected_sbsar.graphs[int(_selected_sbsar.graphs_list)] ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ IndexError: bpy_prop_collection[index]: index 0 out of range, size 0I allready removed blender and all preferences and the integration tools. And installed everything from scratch, the error persists. Blender: 5.0.0Adobe Substance 3d addon-for Blender: 3.0.0Substance Integration Tools: 3.0.0MacOS: 26.1

I downloaded the latest two compressed files from the official website and installed them correctly. However, when I tried to import the.sbsar file exported from Adobe Substance 3D Designer, an error occurred. The file was indeed imported, but the color editor was not properly connected. Therefore, I am here seeking a solution.The methods I have tried: running Blender as an administrator, trying the old version of Blender 3.3.1, and ensuring that the file path does not contain Chinese characters. My biggest problem is how to solve the error: "Substance 3D in Blender: An error occurred while setting the material [Substance_graph]. [0.003] seconds" 

Hey,Been a while since I used Substance Plugin in UE, but it appears to be quite unstable.I have two occuring issues resulting in null pointer exceptions: 1. Unticking a texture outputUnhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000470 UnrealEditor_SubstanceEditor!SSubstanceEditorPanel::OnToggleOutput() [D:\build\U5M\Sync\LocalBuilds\PluginTemp\HostProject\Plugins\Substance\Source\SubstanceEditor\Private\SSubstanceEditorPanel.cpp:786] UnrealEditor_SubstanceEditor!TBaseSPMethodDelegateInstance<0,SSubstanceEditorPanel,1,void __cdecl(enum ECheckBoxState),FDefaultDelegateUserPolicy,SubstanceAir::OutputInstance *>::ExecuteIfSafe() [D:\RocketSync\5.6.0-43139311+++UE5+Release-5.6\Working\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:309]2. Selecting a dropdownUnhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff UnrealEditor_SubstanceEditor!SListView<TSharedPtr<FString,1> >::ScrollIntoVi

Hello! I've recently come across a crash in the Unreal 5.5 substance plugin, 100% reproducible Create a new Substance Graph Instance WITHOUT creating a material instanceOpen the Graph instance and disable any texture output parameterUnreal editor will crash due to a nullptr reference I was looking through the plugin source code and the fix is very simple Inside the file Plugins/External/Marketplace/Substance/Source/SubstanceEditor/Private/SSubstanceEditorPanel.cpp line 786 Graph->ConstantCreatedMaterial is not being checked before being accessed auto mat = Graph->ConstantCreatedMaterial; for (int i = 0; i < mat->TextureParameterValues.Num(); i++) { if (mat->TextureParameterValues[i].ParameterInfo == OutputData->ParamInfo) { mat->TextureParameterValues.RemoveAt(i); break; } } mat->PostEditChange();Should be wrapped in a null check i.eauto mat = Graph->ConstantCreatedMaterial; if (mat) { for (int i = 0; i < mat->Textu

Even after reinstalling blender (3.2.2) , substance 3d addon (0.9.2), and integration tools (1.4.3) I am getting an error when trying to load a material. Python: RuntimeError: class SUBSTANCE_OT_load_sbsar, function invoke: incompatible return value , , Function.result expected a set, not a NoneType please advise  

Hi all.When rendering a scene with a substance2 map, render times are several times slower in 3ds Max 2024 vs 2022.I've attached 2 screenshots from Arnold which show the render times. This issue also occurs with V-Ray. Also, the system also does not appear to be fully utilizing the CPU.When rendering with Arnold GPU in 2024, the initial render also takes a long time to actually begin the render compared to 2022.  There is one issue I have with V-Ray that I do not have with Arnold in that the system completely locks up when beginning a render and when a render is finished in 2024. When I contacted Chaos support and they looked into it, they informed me that it was due to the Substance plugin regenerating texture previews, so I assume that is a plugin issue. My full conversation with them is here, if that is of any help.So far I've tried complete reinstalls of 3ds Max and V-Ray, complete reinstalls of the Nvidia drivers (I tried both the studio and gaming drivers, using DDU to

Hey all, have a bit of an odd issue that I'm hoping you can help with.  Our team is using Unity VCS for source control, but we have a frequent issue of files in the Substance Unity plugin showing as deleted and needing to re-add them.  For example, Substance was working fine then I pulled in changes from a coworker (who hadn't touched the Substance plugin) and a bunch of the plugin files got deleted. The solution is to re-import the plugin, but now my version control is showing me as having added a bunch of plugin files, where nowhere in the project history do they show as being deleted.  It's not a huge dealbreaker having to re-import the plugin when you pull in changes, but it's odd that it only happens with the Substance plugin.  It's also happened across several projects with different coworkers. Are you aware of any issue like this?  Any suggestions how to fix it?

I’m using the Substance to Unity plugin in a new project with only a sphere. I have imported one .sbsar file and set it up correctly and it works in editor and the play preview, however when I try play and build, the material is just white. If I replace the .sbsar setup with a standard material it works fine.How do I resolve this so my .sbsar materials work properly? Thanks a lot.

Hello,We have recently upgraded to the most recent version of Unreal Engine Substance plugin for Unreal Engine 5 and are hitting an issue that is intermittent. It seems some code in substance connector is triggering some fatal code for us when we run a multi process cook, the callstack is as follows:LogWindows: Error: appError called: Fatal error: [File:...\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp] [Line: 77] SECURE CRT: Invalid parameter detected. Expression: Unknown Function: Unknown. File: Unknown Line: 0 LogWindows: Error: Error reentered: Fatal error: [File:...\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp] [Line: 77] SECURE CRT: Invalid parameter detected. Expression: Unknown Function: Unknown. File: Unknown Line: 0 Error: begin: stack for UAT Error: Fatal error: [File:...\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp] [Line: 77] Error: SECURE CRT: Invalid parameter detected. Error: Expression: Unknown Function: Unknown. Fil

Hello,We have recently upgraded to the most recent version of Unreal Engine Substance plugin for Unreal Engine 5 and are hitting another issue that is intermittent. It seems on occassion when we run a multi cook process, the worker process(es) is getting stuck while shutting down. From what we have been able to see, it's getting stuck in Component::Impl::shutdown() (SubstanceConnectorComponentImpl.cpp)at the call Substance::Connector::Framework::shutdown();We are unsure as to why this might be happening as it does not reliably reproduce but is happening frequent enough to where it causes the cook process to hang until its forcefully disconnected.Unreal Engine version is 5.5.3We would appreciate any help, thank you.

Issue Summary:We are experiencing a severe pipeline issue that has cost our team hundreds of hours of manual correction when reimporting an SBSAR file with multiple graph instances that use presets.After importing and configuring textures in Unreal 5.5, we integrate the generated textures into a Material (MLS or Material Layering system). However, when making updates to the Substance Designer source file, republishing the SBSAR, and reimporting it into Unreal, the following issue occurs:Textures regenerate correctly based on the updated SBSAR.All material texture references are overridden to use only the most recently imported texture set.Material layers referencing other textures are obliterated, forcing us to manually restore each material.This completely breaks our material workflow and is clearly not intended behavior.Expected Behavior:After reimporting an SBSAR, texture references should preserve their original assignments per material instance.Actual Behavior:All texture referenc

  I use windows 11 , uninstalled and downloaded addons. Still having the same issue. Idk what to do. Please help. Thank you.

Using Unreal Engine 5.5.3 on windows 11 and Substance in UE5 Plugin 5.5.1, when doing a recompile for my C++ code, the build fails related to "SubstanceCore".I have to disable the plugin to be able to build the project. ---------- Creating patch ---------- Running C:\Program Files\Epic Games\UE_5.5\Engine\Build\BatchFiles\Build.bat -Target="TestProjectCPPEditor Win64 Development -Project=""C:/Users/rhaam/Documents/Unreal Projects/TestProjectCPP/TestProjectCPP.uproject""" -LiveCoding -LiveCodingModules="C:/Program Files/Epic Games/UE_5.5/Engine/Intermediate/LiveCodingModules.json" -LiveCodingManifest="C:/Program Files/Epic Games/UE_5.5/Engine/Intermediate/LiveCoding.json" -WaitMutex -LiveCodingLimit=100 Using bundled DotNet SDK version: 8.0.300 Running UnrealBuildTool: dotnet "..\..\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll" -Target="TestProjectCPPEditor Win64 Development -Project=""C:/Users/rhaam/Documents/Unreal Projects/TestProjectCPP/TestProjectCPP.uproject

Latest Blender Substance add-onSubstance Integration Tools 2.1.1Blender 4.3Material renders black.  

When opening levels in the Unreal Engine editor, the process is extremely slow. Upon investigation, it was found that the delay is caused by the RebuildAlert function, which calls Substance::Helpers::SubstancesRequireUpdate. This function iterates through all Substance assets and calls GraphRequiresUpdate on each.The issue lies within GraphRequiresUpdate, as it internally calls AssetRegistryModule.Get().SearchAllAssets(true). In Unreal Engine 5.4.4, this function introduces a 100 ms sleep. With 1000 Substance assets in the project, this results in a delay of 100 seconds when opening a level.I noticed that in all occurrences (two) of GraphRequiresUpdate being called higher up in the stack, AssetRegistryModule.Get().SearchAllAssets(true) had already been invoked. Therefore, I commented out the AssetRegistryModule.Get().SearchAllAssets(true) call within GraphRequiresUpdate, which eliminated the significant delay when opening levels.Steps to Reproduce:Use a project with a large number of S

Please someone tell me how to solve this prob ? 

Unable to load SBSAR materials into Blender. The console error log is attached.I have uninstalled and reinstalled multiple times. The addon is working in Blender 4.2, but not 4.3.

Hi Adobe Rep + Community, I can't get the Adobe Substance Plugin for Blender working. I am using the Blender v4.2.2 LTS on Windows 11 (23H2) with the latest Substance3DInBlender and Substance3DIntegrationTools, v2.1.1. I don't have the Substance Plugin installed for any other 3D package. Is there anything else I can do to troubleshoot this bug? This is the screenshot of the installation: Thank you,Toan

And this is the screenshot of System Console when I click the Load button..