<p dir="auto">Expected behavior:<br>
In this video,  you can see that Tree map..., Map... , 2 heat maps and Sunburst... are not showing in the tree structure, while some charts have duplicate.</p>
<p dir="auto">It's not a consistent issue, other dashboards seems ok...<a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/villebro/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/villebro">@villebro</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/simcha90/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/simcha90">@simcha90</a> please investigate <g-emoji class="g-emoji" alias="pray" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f64f.png">🙏</g-emoji></p>
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<p dir="auto"><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/villebro/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/villebro">@villebro</a> <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/simcha90/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/simcha90">@simcha90</a> please coordinate a fix. <g-emoji class="g-emoji" alias="pray" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f64f.png">🙏</g-emoji></p>
<h4 dir="auto">How to reproduce the bug</h4>
<ol dir="auto">
<li>Open explore view from chart list,</li>
<li>or Explore chart from dashboard,</li>
</ol>
<h3 dir="auto">Actual results</h3>
<p dir="auto">You will see 2 /api/v1/chart/<em>id</em> requests</p>
<h3 dir="auto">Expected results</h3>
<p dir="auto">only 1 api call for each endpoint.</p>
<h4 dir="auto">Screenshots</h4>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/27990562/100675338-9f9e0900-331b-11eb-8f4d-163c6a5bcfb7.png"><img width="1172" alt="Screen Shot 2020-11-30 at 2 47 56 PM" src="https://user-images.githubusercontent.com/27990562/100675338-9f9e0900-331b-11eb-8f4d-163c6a5bcfb7.png" style="max-width: 100%;"></a></p>
<h3 dir="auto">Environment</h3>
<p dir="auto">latest master</p>
<h3 dir="auto">Checklist</h3>
<p dir="auto">Make sure to follow these steps before submitting your issue - thank you!</p>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have checked the superset logs for python stacktraces and included it here as text if there are any.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have reproduced the issue with at least the latest released version of superset.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I have checked the issue tracker for the same issue and I haven't found one similar.</li>
</ul>
<h3 dir="auto">Additional context</h3>
<p dir="auto">Add any other context about the problem here.</p>