Union failed - CSG returned error code -15

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#1

Union failed - CSG returned error code -15

This had happened a few times before, although I did manage to get around it. This time, it doesn’t seem like I’m able to and the studio keeps giving me this error display prompt when I try to use the “Union” feature on regular parts. I’ve attached the parts in an RBXM file which is sent privately.

image

Reproduction Steps

1 | Gather some parts.
2 | Try to unionize them
3 | In a strange setting, this error may occur.

System information
OS: Windows 11 Home
CPU: AMD Ryzen 5 3600 6-Core Processor
GPU: AMD Radeon RX 550
Ram: 8GB

Activated beta features

  • Aerodynamics
  • Assistant Preview
  • Dragger QoL Improvements
  • Editable Image and Editable Mesh
  • Face Capture
  • Grass Length Customization
  • Live Animation Creator
  • Material Generator
  • Material Picker
  • Multilayer Wrap Fix
  • New Audio API
  • New Base Materials
  • New Studio Camera Controls
  • Notched Screen Support
  • Path2D Instance
  • Scripts are Non-Strict By Default
  • Simulation Pause
  • Terrain Editor
  • Texture Generator
  • UIListLayout Flex Features
  • Updated Roblox Controls
  • Video Uploads

I’ve tried deactivating all activated beta features, and the same error displays regardless after a studio reload.

Expected behavior

If everything was working correctly, I’d expect the parts to union themself correctly as usual.

A private message is associated with this bug report

4 Likes
#2

This happens when you union too many parts, it’s not really a bug as well honestly.

2 Likes
#3

When the “bug” occurs you just have to do a union little by little (instead of selecting all the parts just select somewhere gradually and you could make a complete union) It has already happened and it has worked for me, If my answer is not clear, tell me

2 Likes
#4

So 8, regular cylinders/spheres are too much to handle, when it worked perfectly a day ago?

3 Likes
#5

Even if I tried to do it with only two parts of the item I tried to unionize, it displayed that error and didn’t work as intended.

3 Likes
#6

Thanks for reporting. We’ll be looking into it.

3 Likes