Android App - 3D Dice Have Never Worked

I've seen the 3D dice for the Roll20 Android App work on my Nexus 10 Tablet.  Here are my specs:

Model Number Nexus 10
Android Version 5.1.1
Kernal Version 3.4.67-g0ee50d5
android-build@wped4.hot.corp.google.com#1
Build Number LMY48I

3D Dice Enabled
Chat Avatars Enabled

As noted above, I have never seen the 3D dice to ever work on my Nexus 10 tablet.  It is an *UNbricked* device.  The only time I've seen the 3D dice work on a table was one of my friends' iPads.

I've checked the forums as best I can to try and find known issues or solutions and so far it's come up nil.

Please let me know what additional information you may require.

If you visit this page with your tablet, what do you see? https://get.webgl.org/

Chrome (v. 44):  Hmm. While your browser seems to support WebGL, it is disabled or unavailable. If possible, please ensure that you are running the latest drivers for your video card.

Firefox (v. 40):  A spinning line-box cube.
 
Webgl is enabled in Chrome; I've already done the research and toggled the Chrome:/flags.  Searching the web, all info I can find states that my device supports webgl, but for some reason Chrome won't use it, nor will the roll20 app, even though Firefox will.

Just to update:

Using the https://get.webgl.org/ website doesn't seem like a valid test of Webview at the OS level, which I am assuming your app is using, since this is a separate apk for Android.

I've installed Chrome Dev and Firefox, two different apps, which pass the get.webgl test above and are able to access the Android Webview for some reason.

Respectfully, it seems that if two other apps can access/use Webview/Webgl; isn't there the possibility that the Roll20 app isn't fully accessing the Android Webview like the two other apps can?