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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - PPTX: Moving to a slide takes a minute at 100% CPU after showing that slide"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=132955">132955</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>PPTX: Moving to a slide takes a minute at 100% CPU after showing that slide
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>7.0.0.0.alpha0+
          </td>
        </tr>

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

        <tr>
          <th>URL</th>
          <td>https://bugzilla.suse.com/show_bug.cgi?id=1171015
          </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>Impress
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>gerald@pfeifer.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=160669" name="attach_160669" title="Bug document">attachment 160669</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=160669&action=edit" title="Bug document">[details]</a></span>
Bug document

Moving to slide 9 makes LibreOffice run busy for ~60 seconds while
consuming 100% CPU after showing the slide.

It is *not* the transition to the next slide that causes that, it is
"arriving" at slide 9 even though it's rendered already.

How to reproduce:

 1. Open deck
 2. Go to presentation mode
 3. Proceed slide by slide with <space> or <right-arrow>
 4. Notice how this stops between slides 9 and 10 
    (and again 

Tested with Version: 7.0.0.0.alpha1+
Build ID: 6ba74150866d71469827de9f4f19268dfa7db137
CPU threads: 4; OS: Linux 5.6; UI render: default; VCL: gtk3; 
Locale: en-US (en_US.UTF-8); UI: en-US
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time:
2020-05-07_15:09:13
Calc: threaded


Originally reported against openSUSE at
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1171015at">https://bugzilla.suse.com/show_bug.cgi?id=1171015at</a></pre>
        </div>
      </p>


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