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Linked rig position artifacts on render
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Description

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 517.40

Blender Version
Broken: version: 3.3.0, branch: master, commit date: 2022-09-06 15:39, hash: rB0759f671ce1f
Worked: (newest version of Blender that worked as expected)

Parts of my linked rigged object are rendering differently than what is seen in the viewport.

Please observe the leg on the left side of the picture.

Everything is displayed perfectly fine within the 3d viewport. It's shown correctly regardless of whether I'm in the solid or rendered view.

However, when I start to render the animation, the position of a couple of parts in the leg is offset.

These two frames are taken from the same frame.

It also switches between the correct and offset positions multiple times during an animation.

It's not an issue with the blend file as this is occurring in all my animations using this character.

What's causing the difference between the viewport and the final render?

Event Timeline

Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Needs Information from User.Oct 5 2022, 8:40 PM

Could it be that some dependency cycle is causing the problem?

You can check this in the Blender console.

Undefined behavior of the rig when it has a dependency cycle is not considered a bug.

There don't seem to be any dependency cycle errors in the console.

Read prefs: C:\Users\hoske\AppData\Roaming\Blender Foundation\Blender\3.3\config\userpref.blend                                                                                                                                                                                                                                                                                                                                   Warning! 'C:\Users\hoske\AppData\Roaming\Blender Foundation\Blender\3.3\scripts\startup\MSPlugin\__init__.py' has no register function, this is now a requirement for registerable scripts                       Read blend: C:\Users\hoske\3D Objects\Blender\Projects\Large Projects\TheGirlAndTheRobot\04_VFX\02_Shots\VFX_SCENE_06\VFX_SCENE_06_SHOT_19\vfx_scene_06_shot_19.blend                                            Info: Read library:  'C:\Users\hoske\3D Objects\Blender\Projects\Large Projects\TheGirlAndTheRobot\04_VFX\01_Assets\01_Character\Chipp\chipp_v01\chipp_v01.blend', '//..\..\..\01_Assets\01_Character\Chipp\chipp_v01\chipp_v01.blend', parent '<direct>'                                                                                                                                                                         Info: Read library:  'C:\Users\hoske\3D Objects\Blender\Projects\Large Projects\TheGirlAndTheRobot\04_VFX\01_Assets\01_Character\Chipp\chipp_v01\chipp_v01.blend', '//..\..\..\01_Assets\01_Character\Chipp\chipp_v01\chipp_v01.blend', parent '<direct>'                                                                                                                                                                                                                                                                                                                                                                                          Saved: C:\Users\hoske\3D Objects\Blender\Projects\Large Projects\TheGirlAndTheRobot\04_VFX\02_Shots\VFX_SCENE_06\VFX_SCENE_06_SHOT_19\FRAMES\tgatr_vfx_scene_06_shot_19_raw\tgatr_vfx_scene_06_shot_19_raw_frame_###.exr\Image0172.exr                                                                                                                                                                                            Saved: C:\Users\hoske\3D Objects\Blender\Projects\Large Projects\TheGirlAndTheRobot\04_VFX\02_Shots\VFX_SCENE_06\VFX_SCENE_06_SHOT_19\FRAMES\tgatr_vfx_scene_06_shot_19_raw\tgatr_vfx_scene_06_shot_19_raw_frame_###.exr\alpha0172.exr

Unfortunately, just the video and description of the issue is not enough to determine if this issue is a bug.

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If you think you found a bug, please submit a new report and carefully follow the instructions. Be sure to provide system information, Blender version, and a .blend file with exact steps to reproduce the problem.