About specification of "Including quilt" of "global interference"

Thank you for your help.
I am not good at English, so sorry if there are funny expressions.

Please tell me about "global interference".
Creo 3.0 (M160) is used.
There are two parts in the assembly.
There is a quilt in the standard hole in "part A", and a cosmetic thread is created in "part B".
Some of them are interfering.
When "Global Interference" is executed, the interference part and the volume are displayed, but if you check "Include Quilt", the volume will not be displayed.

In the explanation of PTC case "CS 34556", there is description that volume is not calculated for analysis including quilt.
https://www.ptc.com/en/support/article?n=CS34556

In another case "CS 217405" SPR 4757822 has been issued as a defect, and has been corrected in Creo 3.0 (M 070).
https://www.ptc.com/en/support/article?n=CS217405

Which is the right information?
I am sorry to trouble you, but thank you for your consideration.