Emojis in bitmap font

I am trying to include emojis into a bitmap. I am able to render the emojis and texts on desktop and ios devices. But it is showing a black box instead of chars and emojis on android device.

  1. Create a bitmap font using bitmap font generator (anglecode.com)
  2. Downloaded emoji files textures and data files from joypixel
  3. Using texture packer and gimp, I appended the bitmap font texture with emoji texture and updated the font xml file. (Note: new font texture(chars + emojis) has dimension: 2048 x 11835 px)

Both emojis and chars renders properly on desktop and apple devices. but it shows a black boxes instead of chars / emojis on android devices.

Possible that texture is too large for Android.