I was playing with some simple unions earlier when I stumbled upon a problem. I tried to union something when all of a sudden, the negated parts weren’t responding to the part I was molding. I thought, “We’ll that’s odd, I’ll just try that again” - I try again and that’s when this error popped up. I’ve never seen any error like this before, so I’m assuming it’s rare or something critical. However, now I can’t seem to union anything without it either giving an error or ignoring a negated part. Does anyone know why this error occurs, and is there anything I should do to prevent it from happening?
I also included a screenshot of the pop up, as well as the model of the union I was trying to accomplish…
Then again, this could’ve just been a one time deal. I retried the union in a different studio and it works just fine. Let me know if anyone else has troubles with the same union, or if they’ve encountered this problem themselves.
Hey, and thanks for taking the time to report this.
Indeed error codes from the new CSG system are something we are always interested in. Where we’ve seen -21 before is in cases where the CSG child data is for one reason or other, unavailable.
The behavior you describe seems to point to a problem with storing or retrieving the necessary data.
Was the model published, or entirely local? This might help us narrow it down.
On the file, 2 of the negate parts (on the farthest side) seemed “blank” - I couldn’t select them, just as if they didn’t exist.
I took fresh bricks, scaled, oriented and positioned it back to it’s place and it worked.
I was using :SubtractAsync on parts and I ran into error code -21.
The part that was being unioned was completely fine, however the subtracting parts had
the property Archivable false. I made sure Archivable was true and it worked fine…?
(This is the only topic about error code -21 I could find)
