The Avatar Legends Mash-Up Pack will not load correctly

The Avatar Legends Mash-Up pack will not load the texture pack or resource pack when opening the world. Resetting the world did nothing either.

Steps to Reproduce

1. Launch Minecraft bedrock
2. Purchase and open the Avatar Legends Mash-Up pack
3. Observe that the texture and resource pack are not working

Observed Result
Texture and resource pack do not load correctly

Expected Result
The packs should load as normal