concept hdl quit unexpectedly

Hi
I run a concept hdl skill which can global change the body.  I have 35 same body in 5 page.But the concept hdl quit unexpectedly when I run the skill.  Do someone meet the some crash issue?
There are two kind of error in errorlog.xml which is generated automatically by concept.
Finally I found the solution,that is putting all the toolbars on .  It works ,even the solution is so strange.  What is the function mpsBGet,ToolBtnCombo::GetButtonClass? Can anyeone give me some professional ideas?
Michael

ACCESS_VIOLATION
<function>
      <name>ToolBtnCombo::GetButtonClass</name>
      <offset>343898</offset>
    </function>
 <function>
      <name>mpsBGet</name>
      <offset>663</offset>
    </function>