This is however a valid feature request, in my opinion. Assembly patterns are very useful. Does anybody have a reason why this should not be a feature?

I get invalid geometry when attempting to cut "Common" from "Cut" (seeing the file makes the operation really evident) to form an external thread. Can anybody else try the boolean operation to confirm that it is a bug? Generally, throughout creating this part, I have experienced ...

NormandC wrote:At least 2248 is fixed where subtractive polar patterns are concerned.

Please take a look at this bug #2248 comment, which demonstrates a substractive (pocket) polar pattern which still shows the issue.

I attach the same image here for synthesis