Interaction Use + Combined Fragment problem

For simplfiy my problem, I created a meaningless sequence diagram.
Here is an Interaction Use inner a combined fragment.
Before I moving the combined fragment to lower place, the diagram looks like attachment 1.
After I doing so, the diagram looks like attachment 2.

I think that the Interaction Use (Sequence Diagram 2) should be moved down automatically while I’m moving its surrounding Combined Fragment, but it didn’t.
It’s inconvenient when I want to add some messages before a combined fragment.
After I adding messages before a combined fragment, the combined fragment will be pushed down automatically.
But the Interaction Use inner it didn’t.

sd1.png
sd2.png

Hi tinlans,

Thank you for your post. I will forward your question to our engineers and post their reply as soon as I can.

Best regards,
Lilian Wong

Hi tinlans,

Thank you for bringing the problem about adding Interaction Use in Combined Fragment to our attention, the problem is fixed and deployed. Please download and try the patch in the following link. I hope it can solve your problem. If you have any inquiries, please feel free to ask.
http://files3.visual-paradigm.com//200803/Patch/sp1_20080311w/VP_Suite_Windows_3_2_sp1_20080311w.exe

Best regards,
Lilian Wong