Something went wrong. CSG returned error code -8

I cannot union these two unions together window frame.rbxm (266.3 KB)

I also cant separate this union either for some reason
door frame.rbxm (17.4 KB)

I made a devforum post about it and apparently its a bug with csgv3

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This is just an acknowledgment announcement!

We’ve filed a ticket to our internal database, and we’ll follow up when we have an update!

Thanks for the report!

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Hey @RyanZ225_PC,
I loaded both rbxm files into production Roblox studio and they union and separate as expected. This is not to imply you’re not running into the issue. Error -8 usually means an internal error in the exact math for the CSG Operation.

One way to alleviate the issue is to do the operations closer to the origin.

This is a difference between in game CSG APIs(notable the GeometryService APIs - Don’t use them to build objects, as they don’t store history currently) and Studio. We are in the process of porting those changes over to studio and are expecting somewhere near the end of the summer for that (we’re trying to make sure to not disrupts you guys)
~BelgianBikeGuy

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