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Particle source face creates an unwanted object in the middle of mesh
Needs Information from User, NormalPublic

Description

System Information
Operating system: Windows 10
Graphics card:

Blender Version
Broken: 2.9
Worked:

Short description of error
Creating a particle system with source as faces, creates an unwanted particle in the middle of the mesh.

Exact steps for others to reproduce the error
Create a mesh (cube)
Create a particle (cube).
Create a particle system on the mesh with source as cube, and emitting from faces.

https://drive.google.com/file/d/1fTqEKrQ1nDVLWIlQ7gPvCa8oHkM4_TIA/view?usp=sharing

Event Timeline

This is often a limitation when you add modifiers after the particle.
But in the attached file I don't see this particle in the middle of the object.
Did I get the problem wrong?

You've understood the problem correctly - I'm using the same blend file, but I get this:

Richard Antalik (ISS) changed the task status from Needs Triage to Needs Information from User.Thu, Sep 10, 6:55 AM

I also can't reproduce this issue.

Please download development build from https://builder.blender.org/download/ and check if this is still issue.
Try to update GPU drivers.
Click on Help > Report a Bug and copy system information to this report so we can know what GPU and driver you are using.

I can confirm this still persists in the daily build. Info:

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 443.18

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-11 09:14, hash: rB1b6dd42803df
Worked: (newest version of Blender that worked as expected)

Latest driver should be 452.06 so please check if that solves the issue