CSG returned error code - 15

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Typing here because they not allowing me to post this bug in bugs group.
I cant take this anymore, this bug is following me in every games im doing for 1 year.
Please i beg you fix it

I cant do unions, I cant separate unions, I cant negate Unions.
If I trying to separate it nothing happens, trying to negate Union - Error, trying to make union - Error.
I’ll do anything for this bug gone.

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Hello spindeli!

Yes, first of all, if you have already unioned a part, you cannot do the same thing the second time, you can try to union it in bulk, you can also union a part to its simple form in the model section.

i cant negate, separate, union part when it has this error

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Do you have the file containing the problem?

also if you try to do the same thing in another baseplate, does the issues happen there aswell?

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This error not disappearing when you go on another game
And there is so much files contain this error I think its the place problem

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Even when i got new pc the error still didnt disappeared

what were you trying to do?

Can you give a step by step process so I can see if I can recreate the issue?

I’ve never had this problem before.


As you can see in this video, I can’t separate this union, when I doing it, it’s separating a union without changing it.

Second video is me trying to union this union with random negative part, and this happening.


Same Error happening when i trying to negate that Union.
Fun fact when i changing the orientation or position of Union the error is disappearing.

ok, so changing the orientation fixes the problem?

Also, it looks like the problem is with your model. does this happen with any other Unions?

yes its happening randomly with every models, it can disappear, but can appear randomly

Also sometimes changing orientation or position doesnt solute the problem

does it only happen with models? or can ist also happen with two regular parts?

Like if you create two fresh, brand-new, parts and try to union them.

if i create new parts, the unions will still have the error when do operations, and it can happen with two regular parts

Thats interesting. Do you think it could be due to a network connection? (if you disconnect from wifi does the issue persist?)

If you are using a local file does the problem still happen?

Is your studio version up to date?

have you tried uninstalling studio and reinstalling it?

Does the problem happen if you were to open studio using another roblox account?

No its not bc of internet, this error was with me for 2 years.
I dont know i never did it in local file
Yes my studio is up to date
Tried to reinstall it very much times on different pc’s
Never Tried to do this in another roblox account

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