Issues

• isaacsim.ros2.control: URDF pruning drops the fixed joint between two control-joint components, producing a two-root URDF that controller_manager (Jazzy) rejects

  isaac-sim-rosisaac-sim-v6-1-0
  isaac-sim/IsaacSim#915 · Filter by author hashimoto-siproc opened on Oct 28, 2026
  

• Isaac Sim 6.1 GPU PhysX silently drops contacts after a large same-frame teleport

  isaac-sim-physicsisaac-sim-v6-1-0
  isaac-sim/IsaacSim#914 · Filter by author flm8620 opened on Oct 28, 2026

• Isaac Sim 5.1 crashes at startup on NVIDIA driver 610.62 (Windows) / 615.71.09 (Linux) — crash in rtx.scenedb on the Vulkan backend; D3D12 backend works

  isaac-sim-setupinstallationsisaac-sim-v5-1-0
  isaac-sim/IsaacSim#912 · Filter by author ywsldxk opened on Oct 27, 2026
  1

  

• ROS2CameraHelper / ROS2RtxLidarHelper 'release_instance' never detaches its writer (calls a non-existent method)

  isaac-sim-rosisaac-sim-v6-0-1
  isaac-sim/IsaacSim#909 · Filter by author sybaekrinfra opened on Oct 26, 2026
  1

• Articulation.set_dof_positions resets the position targets of joints not in dof_indices

  isaac-sim-apiisaac-sim-v6-1-0isaac-sim-v6-2-0
  isaac-sim/IsaacSim#907 · Filter by author mfinean opened on Oct 25, 2026
  

• SimulationApp's SIGINT handler exits with status 0 and replaces the app's own handler

  isaac-sim-apiisaac-sim-v6-1-0isaac-sim-v6-2-0
  isaac-sim/IsaacSim#906 · Filter by author mfinean opened on Oct 25, 2026
  1

  

• Segfault in omni.syntheticdata during the post-process graph tick (Isaac Sim 6.1.0)

  isaac-sim-sdgisaac-sim-v6-1-0
  isaac-sim/IsaacSim#905 · Filter by author mfinean opened on Oct 24, 2026
  2

  

• [Isaac Sim 6.2] RTX LiDAR uses only the first 256 emitter states per prim (tickStates wraps at 256)

  isaac-sim-sensorsisaac-sim-v6-2-0
  isaac-sim/IsaacSim#901 · Filter by author vick-yu opened on Oct 22, 2026
  2

• v7.0.0a1 & main: Build exception

  isaac-sim-setupinstallationsisaac-sim-v7-0-0a1
  isaac-sim/IsaacSim#899 · Filter by author filipthoen2 opened on Oct 21, 2026
  1

• [Feature] Newton backend: callback between collide and solver step

  isaac-sim-physicsisaac-sim-v6-1-0isaac-sim-v7-0-0a1
  isaac-sim/IsaacSim#898 · Filter by author PeterL-NV opened on Oct 21, 2026
  2

• RTX LiDAR LaserScan uses -1.0 for no-return measurements instead of +inf

  isaac-sim-rosisaac-sim-v6-2-0
  isaac-sim/IsaacSim#897 · Filter by author sybaekrinfra opened on Oct 21, 2026
  2

  

• Incorrect LaserScan angular resolution for solid-state RTX LiDAR in Isaac Sim

  bugisaac-sim-rosisaac-sim-v6-2-0
  isaac-sim/IsaacSim#896 · Filter by author sybaekrinfra opened on Oct 21, 2026
  2

• ROS2Subscriber: setting messageName segfaults (libisaacsim.ros2.nodes.plugin.so) when the ROS 2 bridge failed to load

  isaac-sim-rosisaac-sim-v6-0-1isaac-sim-v6-2-0
  isaac-sim/IsaacSim#892 · Filter by author l-tschreiber-a11y opened on Oct 19, 2026
  1

  

• post_install.bat missing for isaac sim 6.2.0

  isaac-sim-setupinstallationsisaac-sim-v6-2-0
  isaac-sim/IsaacSim#889 · Filter by author iameijaz opened on Oct 16, 2026
  7

• Writer.detach() fails after labelling with rep.get.prims() + rep.modify.semantics()

  isaac-sim-sdgisaac-sim-v6-1-0regression
  isaac-sim/IsaacSim#888 · Filter by author franz6ko opened on Oct 15, 2026
  3

• Viewport reference grid rendered into the first captured frame intermittently

  isaac-sim-sdgisaac-sim-v6-1-0
  isaac-sim/IsaacSim#887 · Filter by author franz6ko opened on Oct 15, 2026
  2

  

• The base diffuse roughness of OpenPBR MaterialX incorrectly considers the surface base color. This wrongly shades MaterialX materials.

  isaac-sim-ovisaac-sim-v6-1-0
  isaac-sim/IsaacSim#882 · Filter by author 2lian opened on Oct 14, 2026
  2

  

• Isaac Sim 6.1 CUPTI conflict slows PyTorch workloads

  isaac-sim-perfisaac-sim-v6-1-0
  isaac-sim/IsaacSim#881 · Filter by author flm8620 opened on Oct 14, 2026
  1

• URDF import: merge_fixed_joints rotates origins with pitch −π/2 by 180° about x

  isaac-sim-robot-import-exportisaac-sim-v6-1-0isaac-sim-v6-2-0
  isaac-sim/IsaacSim#880 · Filter by author NeoZng opened on Oct 14, 2026
  2

  

• RTX Real-Time 2.0 renders black with DLSS/DLAA on RTX 5090; persists after upgrading to Isaac Sim 6.1.0 and driver 595.58.03

  isaac-sim-sdgisaac-sim-v6-0-0isaac-sim-v6-1-0
  isaac-sim/IsaacSim#879 · Filter by author njayboehme opened on Oct 14, 2026
  6

• Script Editor won't let me copy output

  isaac-sim-ovisaac-sim-v6-1-0
  isaac-sim/IsaacSim#874 · Filter by author iameijaz opened on Oct 10, 2026
  4

  

• Docs: Python SIGALRM callbacks cannot guarantee a GIL-independent shutdown watchdog

  bugisaac-sim-documentation
  isaac-sim/IsaacSim#872 · Filter by author wee733 opened on Oct 8, 2026
  2

• SimulationManager.register_callback keeps bound-method owners alive; every short-lived Prim wrapper leaks (severe with isaacsim.ros2.sim_control)

  bugisaac-sim-apiisaac-sim-v6-0-1isaac-sim-v6-1-0
  isaac-sim/IsaacSim#870 · Filter by author aje0005 opened on Oct 7, 2026
  1

• SimulationApp exits with status 0 after an unhandled exception

  isaac-sim-apiisaac-sim-v6-1-0
  isaac-sim/IsaacSim#867 · Filter by author NeoZng opened on Oct 2, 2026
  1

  

• URDF/MJCF import with fix_base=True gives a floating-base PhysX articulation (apply_fix_base skips existing fixed anchors)

  isaac-sim-robot-import-exportisaac-sim-v6-1-0
  isaac-sim/IsaacSim#859 · Filter by author NeoZng opened on Sep 29, 2026
  3