How to render text in a SymbolLayer while using map in offline mode?

[josh-cohen-rm]

What is the best practice for rendering text in a SymbolLayer while using map in offline mode?

I am unable to render text in a SymbolLayer while using the map in offline mode. I am receiving error "Failed to load glyph range 0-255 for font stack Open Sans Bold,Arial Unicode". I am unable to use SymbolLayers in offline mode, and would appreciate your help!

Context
I have been able to successfully view a map in offline mode by creating offline packs with various styleUrls

let packStyleUrl = 'mapbox://styles/mapbox/dark-v10';
// packStyleUrl = mapbox://styles/mapbox/light-v10
// packStyleUrl = mapbox://styles/mapbox/satellite-v9
await MapboxGL.offlineManager.createPack({
      name: packId,
      styleURL: packStyleUrl,
      minZoom: 14,
      maxZoom: 22,
      bounds: bounds
    }, progressListener, errorListener)

In my map, I have a symbol layer for rendering some text on the map:
<MapboxGL.SymbolLayer id={'layer_id'} style={myStyle}/>
When I attempt to render the map, my symbol layer does not display. I see the "Failed to load glyph" error in my console.

Manual Attempt
To verify that I am using a style which DOES have an appropriate font stack, I tried this process with a manual style.

I manually created a style in Mapbox Studio which I know has font 'DIN Pro Regular'. I then used this style when downloading my offline pack, by specifying styleUrl 'mapbox://styles/josh-cohen-rm/ckyampo5e02co14o7tjvb06y2'. I updated my SymbolLayer to use font "DIN Pro Regular'. I verified in the progressListener that offline tiles were downloaded. However, when I navigate to the map, I see error 'Failed to load glyph range 0-255 for font stack DIN Pro Regular'.

Observations
It seems that SymbolLayers require extra precaution in offline mode -- I see a callout in the Mapbox offline mode documentation indicating:

"When adding symbol layers to an existing map with the Mapbox Maps SDKs for iOS and Android, you will need to take additional precautions for them to be visible offline:" (https://docs.mapbox.com/help/troubleshooting/mobile-offline/#working-with-offline-maps)

However, my understanding is that I have downloaded appropriate style packs, so I should be able to see text!

Thank you in advance for your help!