Important: Isaac Sim support
Note: For Isaac Sim support, the community is gradually transitioning from this forum to the Isaac Sim GitHub repository so that questions and issues can be tracked, searched, and resolved more efficiently in one place. Whenever possible, please create a GitHub Discussion or Issue there instead of starting a new forum topic.
Note: For any Isaac Lab topics, please submit your topic to its GitHub repo ( GitHub - isaac-sim/IsaacLab: Unified framework for robot learning with multi-physics/renderer support · GitHub ) following the instructions provided on Isaac Lab’s Contributing Guidelines ( Contribution Guidelines — Isaac Lab Documentation ).
Please provide all relevant details below before submitting your post. This will help the community provide more accurate and timely assistance. After submitting, you can check the appropriate boxes. Remember, you can always edit your post later to include additional information if needed.
Isaac Sim Version
6.1.0
6.0.1
6.0.0
5.1.0
5.0.0
4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):
Operating System
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):
GPU Information
- Model:
- Driver Version:
Topic Description
Detailed Description
I am facing issue to install Isaac Sim on RTX Spark. The Isaac Sim is able to be opened but black screen on the viewport.
Steps to Reproduce
-
Open IsaacSim.bat
(Add more steps as needed)
Error Messages
2026-11-07T02:25:08Z [4,247ms] [Error] [carb.graphics-vulkan.plugin] Flags 0x6 must be the same for both device and instance.
[4.568s] [ext: omni.iray.libs-0.0.1] startup
|---------------------------------------------------------------------------------------------|
| Driver Version: 621.14 | Graphics API: Vulkan
|=============================================================================================|
| GPU | Name | Active | LDA | GPU Memory | Vendor-ID | LUID |
| | | | | | Device-ID | UUID |
| | | | | | Bus-ID | |
|---------------------------------------------------------------------------------------------|
| 0 | NVIDIA RTX Spark N1X (6144-cor.. | Yes: 0 | | 63986 MB | 10de | 7d0a0100.. |
| | | | | | 2e03 | 2fe62aa4.. |
| | | | | | 1 | |
|---------------------------------------------------------------------------------------------|
| 1 | Microsoft Direct3D12 (NVIDIA R.. | | | 49132 MB | 10de | 7d0a0100.. |
| | | | | | 2e03 | f85db70a.. |
| | | | | | N/A | |
|=============================================================================================|
| OS: Windows 11 Pro, Version: 10.0 (26H1), Build: 28000, Kernel: 10.0.28000.3365
| Processor: NVIDIA RTX Spark N1X (6144-core GPU, 20-core CP
| Cores: 20 | Logical Cores: 20
|---------------------------------------------------------------------------------------------|
| Total Memory (MB): 65516 | Free Memory: 53771
| Total Page/Swap (MB): 74732 | Free Page/Swap: 61229
|---------------------------------------------------------------------------------------------|
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2026-11-07T02:25:17Z [13,368ms] [Warning] [isaacsim.core.simulation_manager.plugin] USD stage is not available; stage-opened subscription is deferred
2026-11-07T02:25:17Z [13,368ms] [Warning] [isaacsim.core.simulation_manager.plugin] USD stage is not available; stage-opened subscription is deferred
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2026-11-07T02:25:29Z [24,675ms] [Warning] [pxr.Semantics] pxr.Semantics is deprecated - please use Semantics instead
Warp 1.13.0 initialized:
CUDA Toolkit 12.9, Driver 13.5
Devices:
“cpu” : “ARMv8 (64-bit) Family 8 Model D87 Revision 1, NVIDIA”
“cuda:0” : “NVIDIA RTX Spark N1X (6144-core Blackwell RTX GPU)” (110 GiB, sm_121, mempool enabled)
Kernel cache:
\?\C:\Users\darre\AppData\Local\NVIDIA\warp\Cache\1.13.0
2026-11-07T02:25:29Z [24,970ms] [Warning] [omni.replicator.core.scripts.extension] No material configuration file, adding configuration to material settings directly.
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2026-11-07T02:25:32Z [28,327ms] [Warning] [omni.usd] Encountered USD Warnings but USD Diagnostics are currently muted. To view USD Warnings, please set the ‘/persistent/app/usd/muteUsdDiagnostics’ setting to false in Preferences page.
[28.538s] [ext: omni.kit.widget.imageview-1.0.5] startup
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[29.603s] [ext: isaacsim.robot.wheeled_robots.ui-2.3.1] startup
[29.611s] [ext: isaacsim.robot_setup.assembler-3.3.2] startup
[29.626s] [ext: isaacsim.robot_setup.collision_detector-0.2.1] startup
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[29.670s] [ext: isaacsim.robot_setup.xrdf_editor-3.6.1] startup
[29.692s] [ext: isaacsim.sensors.camera.ui-0.7.1] startup
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[29.724s] [ext: isaacsim.sensors.physx.examples-2.4.3] startup
[29.739s] [ext: isaacsim.sensors.physx.ui-2.5.1] startup
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[29.753s] [ext: isaacsim.util.camera_inspector-1.2.1] startup
[29.760s] [ext: isaacsim.util.physics-1.2.1] startup
[29.772s] [ext: omni.anim.asset-110.1.0] startup
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2026-11-07T02:25:34Z [29,891ms] [Warning] [omni.graph.core._impl._registration.register_python_ogn] Python import process in omni.anim.graph.core failed - ‘NoneType’ object is not subscriptable. Aborting Python node registration
[30.087s] [ext: omni.curve.creator-110.0.0] startup
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context created: omni.anim.retarget.preview-110.1.0 Preview Context 1
[30.468s] [ext: omni.anim.retarget.ui-110.1.0] startup
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[32.462s] [ext: omni.kit.widget.live-2.1.12] startup
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2026-11-07T02:25:37Z [32,424ms] [Warning] [omni.kit.widget.cache_indicator.cache_state_menu] Unable to detect Omniverse Cache Server. File C:/Users/darre/.nvidia-omniverse/config/omniverse.toml is not found. Consider installing it for better IO performance.
[32.621s] [ext: omni.kit.widget.collection-0.3.3] startup
[32.631s] [ext: omni.kit.widget.timeline-107.0.2] startup
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[32.666s] [ext: omni.kit.window.usd_paths-1.0.9] startup
[32.671s] [ext: omni.physics.isaacsimready-110.1.11] startup
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[32.955s] [ext: omni.physx.camera-110.1.11] startup
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[33.258s] [ext: omni.resourcemonitor-107.1.1] startup
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[33.330s] [ext: omni.simready.explorer-1.1.4] startup
[33.350s] [ext: omni.kit.converter.cad-209.4.0] startup
[33.352s] [ext: isaacsim.app.setup-1.12.0] startup
[33.358s] Isaac Sim Full Version: 6.0.0-rc.59
[33.363s] [ext: omni.kit.window.stats-0.1.8] startup
[33.369s] [ext: omni.kit.profiler.window-2.5.0] startup
[33.386s] [ext: isaacsim.exp.full-6.0.0] startup
Warning: Possible version incompatibility. Attempting to load omni::fabric::IStageReaderWriter with version v0.16 against v0.14.
Warning: Possible version incompatibility. Attempting to load omni::fabric::IStageReaderWriter with version v0.16 against v0.14.
Warning: Possible version incompatibility. Attempting to load omni::fabric::IStageReaderWriter with version v0.16 against v0.15.
2026-11-07T02:25:39Z [35,230ms] [Error] [omni.rtx] Raytracing is not supported on GPU: 0. Hardware, driver or Operating system upgrade is required.
2026-11-07T02:25:39Z [35,231ms] [Error] [carb.scenerenderer-rtx.plugin] rtx driver verification failed.
2026-11-07T02:25:39Z [35,235ms] [Warning] [omni.hydra.rtx] HydraEngine rtx failed creating scene renderer.
2026-11-07T02:25:39Z [35,235ms] [Warning] [omni.usd] UsdManager::initializeHydraEngineInstance - unable to create shared hydra engine context for engine: uid: 1024 type: rtx flags: 0 tickRateInHz: 0 deviceMask: 1 creationIndex: 0
2026-11-07T02:25:39Z [35,236ms] [Warning] [omni.usd] UsdManager::addHydraEngineWithConfiguration - Invalid sync scope created. Failed to add Hydra engine: uid: 1024 type: rtx flags: 0 tickRateInHz: 0 deviceMask: 0 creationIndex: 0
2026-11-07T02:25:51Z [46,816ms] [Warning] [omni.kit.material.library.material_library] get_mdl_list_async: mdl_list_cache is not complete
2026-11-07T02:25:51Z [46,817ms] [Warning] [omni.kit.material.library.material_library] get_mdl_list: mdl_list_cache is not complete
2026-11-07T02:25:51Z [46,818ms] [Warning] [omni.kit.material.library.material_library] get_mdl_list_async: mdl_list_cache is not complete
2026-11-07T02:25:51Z [46,819ms] [Warning] [isaacsim.asset.transformer.rules.utils] omni.kit.material.library.get_mdl_list_async returned no ${kit}/${app} entries; using hardcoded built-in MDL list (15 basename(s)).
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Additional Information
What I’ve Tried
(Describe any troubleshooting steps you’ve already taken)
Related Issues
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Additional Context
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