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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - CRASH on Drawing (assertion failure at vcl/source/app/scheduler.cxx:597)"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=116482">116482</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>CRASH on Drawing (assertion failure at vcl/source/app/scheduler.cxx:597)
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>6.1.0.0.alpha0+ Master
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>himajin100000@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Description:
see steps to reproduce

Steps to Reproduce:
1. Run Writer.
2. Make sure that you have "Drawing" Toolbar enabled. if not, follow
View->Toolbars->Drawing in the main menu
3. Select "Rectangle" and try to draw a rectangle
4. assertion error
5. Libreoffice automatically restart. Title has "Remote" like Untilted
1(Remote)
6. Repeat Step 3.


Actual Results:  
On "STEP 3":

Assertion failed!

Program: C:\build\instdir\program\vcllo.dll
File: C:/sources/libo-core/vcl/source/app/scheduler.cxx
Line: 597

Expression: nullptr == mpSchedulerData || utl::ConfigManager::IsFuzzing()

but On "STEP 6":
No assertion error.

Expected Results:
No assertion error on STEP 3


Reproducible: Always


User Profile Reset: No



Additional Info:
I did my manual bibisection with official nightly build available at
<a href="https://dev-builds.libreoffice.org/daily/master/Win-x86_64@42/">https://dev-builds.libreoffice.org/daily/master/Win-x86_64@42/</a>

turned out to be

good with 
libo-master64~2018-03-14_01.42.36

and 

bad with 
libo-master64~2018-03-15_00.49.26

so something between these builds may be the cause.
--
I don't think I can fix this by myself,so I'm not going to submit a patch this
time.


User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101
Firefox/61.0</pre>
        </div>
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