Tumblerview data-size warning message

[DanMacLeod]

Not sure if I'm getting the error below due to something I'm doing or it's a conflict with components. Has anyone else seen this error message?

Error 22 Conflicting use of attribute 'data-size' in tumblerview

<svg id="coordinate-display-view" class="background">
<rect x="0" y="0" width="100%" height="100%" fill="#000000" />
<animate attributeName="x" from="100%" to="0" begin="load" dur="0.5" easing="ease-in-out" />
<use href="#app-gradient-background" class="app-gradient-background application-fill" apply-style="at-use">

<use id="display-options-tumbler" x="5%" y="40%" width="100%" height="50%" href="#tumblerview" class=" h1 application-fill">
<use id="item0" href="#tumbler-item" class="item application-fill">
<text id="content">Test Data 1</text>
</use>
<use id="item1" href="#tumbler-item" class="item application-fill">
<text id="content">Test Data 2</text>
</use>
<use id="item2" href="#tumbler-item" class="item application-fill">
<text id="content">Test Data 3</text>
</use>
</use>

</use>
</svg>

[Goofy73]

I have the same problem, but my app works fine.
So I ignored this error.
I haven't found any solution until now

[DanMacLeod]

My app seems to work fine also, but I would still like to understand the reason for the error message.