I've created a twist object and I'm attempting to Merge it with another object.
When I choose 'Combine' both objects disappear.
When I choose 'Subtract' and choose the 'twist', it disappears, leaving the other object unaffected.
When I choose 'Subtract' and choose the other object, both objects disappear.
Is this supposed to happen? I can't see the point if so. Am I missing a step? All my other subtracts and combines work as expected.